040710   SUNIL, MESHRAM N M (Entomology Div, ICAR- Indian Agricultural Research Institute, New Delhi - 110 012, Email: nmmeshram@gmail.com ) : New distribution records for the leafhopper genus Hishimonus ishihara from India. Indian J Entomol 2020, 82(2), 285-93.

This study on the species of the genus Hishimonus Ishihara viz., Hishimonus aberrans Knight (Himachal Pradesh), H. acuminatus Knight (Uttarkhand), H. concavus Knight (Nagaland), H. longisetosus Viraktamath and Murthy (Kerala, Nagaland), H. neilsoni Knight (Maharashtra), H. pallidus Dai, Fletcher and Zhang (Haryana and Uttarkhand) and H. phycitis (Distant) (Bihar, Uttar Pradesh, Himachal Pradesh and Uttarakhand), reveals them as new distribution records. All these species are redescribed and illustrated herein.

76 illus, 16 ref

040709   MANJULA K N, KOTIKAL Y K, VENKATESHALU (Entomology Dep, Horticultural Sciences Univ, Bagalkot, Karnataka - 587 104, Email: ykkotikal@rediffmail.com) : Seasonal incidence of tomato pin worm Tuta absoluta (meyrick). Indian J Entomol 2020, 82(2), 280-4.

Observations on the seasonal incidence of the tomato pin worm Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) revealed that the occurrence was less during early stage of the crop, but later increased. The effect of weather factors evaluated during 2017-18 to 2018-19 revealed a positive correlation with the maximum temperature, and a negative one with relative humidity and rainfall.

2 tables, 19 ref

040707   DAS J, MAITY J (Fishery Sciences Dep, Vidyasagar Univ, Midnapore - 721 102, West Bengal, Email: jmaity@mail.vidyasagar.ac.in) : Aquatic entomofauna of River Kangsabati near Midnapore town. Indian J Entomol 2020, 82(2), 272-6.

Entomofauna of river Kangsabati is poorly studied, and this study explores it at three sites- Gandhighat region (site-A), Kangsabati rail bridge region (site-B), Vidyasagar park region (site-C) of district Paschim Medinipur, near Midnapore. The sampling process was done monthly from June 2018 to 2019. This study revealed presence of three orders with eight families, and eleven genera. Laccotrephes sp. was the dominant species. The maximum of Berger-Parker Dominance index (0.53), BMWP score (39.00), ASPT score (6.56), and SIGNAL 2 (3.22) were observed. Hemiptera, Odonata and Coleoptera constituted 54, 26.3, and 19.76 %, and the BMWP score indicated that both biological and water quality were moderate.

2 illus, 2 tables, 54 ref

040704   KUMAR R, PANDEY P S, TIWARI S N (Post Graduate Entomology Dep, Bihar Agricultural Univ, Bhagalpur - 813 210, Bihar, Email: rkipm06@gmail.com) : Efficacy of essential oils against Sitophilus oryzae and Rhyzopertha dominica in stored wheat. Indian J Entomol 2020, 82(2), 261-4.

The experiment was conducted to evaluate the insecticidal activity of four essential oils and their combinations against Sitophilus oryzae and Rhyzopertha dominica under laboratory conditions. 100 % mortality was observed in S. oryzae in grain treated with Murraya koenigii, Callistemon citrinus essential oil at 0.2 %, Murraya koenigii+ Callistemon citrinus oil at 0.1 % each, Murraya koenigii+ Citrus reticulata + Callistemon citrinus oil at 0.07 % each and Murraya koenigii+ Citrus reticulata+ Curcuma longa+ Callistemon citrinus oil at 0.05 % each, after one day of treatment. Also, 100 % mortality was observed with R. dominica after one day of treatment in all essential oils either alone at 0.2 % or their two component combinations at 0.1 % each or three component combinations at 0.07 % each or four component combinations at 0.05 % each.

2 tables, 8 ref

040703   UPADHYAY J, DAS S B (Entomology Dep, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur - 482 992, Email: jagratiu.09@gmail.com) : Functional response of spider Hyllus semicupreus on Spodoptera litura. Indian J Entomol 2020, 82(2), 257-60.

Spiders are preying upon majority of phytophagous insects and remain in the ecosystem for a long time even after harvesting of crops. An experiment was conducted in the Biocontrol laboratory of Jawaharlal Nehru Krishi Vishwavidyalaya, Jabalpur to determine the predatory potential of spider Hyllus semicupreus (Araneae: Salticidae) as test predator on tobacco caterpillar Spodoptera litura (Lepidoptera: Noctuidae). The study revealed that the predatory potential varied from 20 to 100 % according to prey density and fall under II type of the functional response, as regards guild functioning.

4 illus, 2 tables, 30 ref

040701   RANJITH M, NELSON S J, SITHANANTHAM S, NATARAJAN N, PRANEETHA S (Entomology Dep, Agricultural and Horticultural Sciences Univ, Shivamogga, Karnataka - 577 201, Email: ranjithagriofficial@gmail.com) : Population dynamics of brinjal shoot and fruit borer Leucinodes orbonalis guenée. Indian J Entomol 2020, 82(2), 251-3.

The effect of abiotic factors on population dynamics of brinjal shoot and fruit borer Leucinodes orbonalis during summer was observed on brinjal. The trap catch revealed that the moth population was active throughout the cropping season and it had a peak of 13.42 moths/ trap/ day during 19^th standard week (second week of May) whereas the effect of weather factors on trap catch was found to be non-significant. The shoot damage was observed only during initial periods which reduced with fruiting. The shoot damage showed a significant positive correlation with maximum and minimum temperature; negative one with morning and evening relative humidity; however the damage on fruits showed an increasing trend during initial periods which reduced later on, and revealed only a non-significant correlation with weather factors.

1 table, 15 ref

040699   SINGH S, MUKHERJEE S K (Entomology Dep, Orissa Univ of Agriculture and Technology, Bhubaneswar, Odisha - 751 003, Email: swoyamsingh@gmail.com) : Arthropod diversity in cashew blossom. Indian J Entomol 2020, 82(2), 241-4.

Arthropod diversity in cashew blossoms were sampled on five elite cashew varieties viz. Jagannath, Balabhadra, H-1608, H 2/16 and NRC Sel 2 during its flowering and fruiting period (February to April, 2015). A total of 1518 arthropods of 7 orders, 23 families and 29 species were documented. These were in the order of: Hymenoptera > Araneae > Hemiptera > Coleoptera = Lepidoptera > Thysanoptera = Diptera. The species diversity indices viz., Shannon-Weiner index (2.44), Simpson’s index (0.11) and evenness index (0.86) obtained indicate rich species diversity and abundance during first fortnight of April. Comparing the diversity indices between the varieties reveal that Shannon-Weiner index varied from 2.129 to 2.212 showing similarity with the variety H-1608 giving the most diverse.

3 tables, 22 ref

040698   SINGH G, SINGH A K (Entomology Dep, Narendra Deva Univ of Agriculture and Technology, Faizabad - 224 229, Email: gajendraentomo@gmail.com) : Efficacy of insecticides against mustard aphid Lipaphis erysimi kalt. Indian J Entomol 2020, 82(2), 238-40.

The field trial against mustard aphid Lipaphis erysimi Kalt with certain insecticides revealed that imidacloprid 17.8 SL @300 g. a. i. /ha is the most effective. Also, the yield was maximum with dimethoate 30 EC @ 300 g. a.i. /ha (seed yield of 18.50 q/ha), also it was the best in terms of economics. The maximum C: B ratio of 1:16:07 was also obtained with dimethoate.

2 tables, 19 ref

040697   CHAVAN A P, SAGAR D, LATAKE S B, CHANDER S, CHAVAN K A (Entomology Dep, ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, Email: garuda344@gmail.com) : Population dynamics of gram pod borer Helicoverpa armigera (hubner) on chickpea. Indian J Entomol 2020, 82(2), 235-7.

In this study relationship between weather parameters of current, first, second and third lag week was individually explored with peak trap catches of Helicoverpa armigera for ten years (2005-06 to 2014-2015) at Rahuri, Maharashtra. Peaks of trap catches exhibited significant negative correlation with relative humidity of current and third lag weeks; and maximum temperature and sunshine hours of third lag week had positive correlation. Weather based forewarning model was developed by regressing peaks of trap catches in relation to weather parameters of current, first, second and third lag weeks. Stepwise regression revealed that temperature and relative humidity are critical. The pest weather model was validated with the three years (2015-16 to 2017-18) independent dataset.

2 illus, 1 table, 15 ref

040696   SINDHURA K A, GODHANI P H (Entomology Dep, Anand Agricultural Univ, Anand - 388 110, Gujarat, Email: phg@aau.in) : Comparative biology of pulse beetle Callosobruchus maculatus (f.). Indian J Entomol 2020, 82(2), 232-4.

Callosobruchus maculatus (F.) is primary and most destructive pest in stored pulses. Its comparative biology was studied during 2018-2019 in the laboratory of Anand Agricultural University, B. A. College of Agriculture, Anand. The suitability of cowpea, chickpea and green gram to C. maculatus was evalauted under laboratory conditions. The effect on the developmental stages, adult longevity and fecundity was studied. Results revealed that the order of suitability was observed as cowpea > green gram > chickpea.

1 table, 6 ref

040694   MEENAKSHI, THAKUR S K, SHARMA R (Animal Sciences Dep, Central Univ of Himachal Pradesh, TAB Shahapur, Kangra - 176 206, Email: sunilibes@gmail.com) : Biology of diamond back moth Plutella xylostella on different crucifers. Indian J Entomol 2020, 82(2), 226-7.

The present study was done at the Department of Entomology, College of Horticulture and Forestry, Neri (Hamirpur), Himachal Pradesh. The biology of diamond back moth Plutella xylostella was evaluated on four crucifers as hosts. It was observed that in cauliflower and cabbage life cycle was shorter compared to radish and mustard; in cauliflower it was 35.60 days and in cabbage 41.20 days. Egg hatching was more with mustard (98 %) followed by cauliflower (97.80 %).

1 table, 12 ref

040691   TRIPATHY A (Silviculture and Agroforestry Dep, Birsa Agricultural Univ, Ranchi - 834 006, Jharkhand, Email: ashirwadaspire351@gmail.com) : Cannibalistic behaviour of bark eating caterpillar Indarbela quadrinotata and review of cannibalism in lepidoptera. Indian J Entomol 2020, 82(2), 213-6.

Cannibalism recorded in Indarbela quadrinotata (Walker, 1856) (Lepidoptera: Cossidae) at Ranchi, Jharkhand is described as so far unknown behaviour of the species. List of cannibalistic behaviour in Lepidoptera compiled with available literature reveal 45 species under 11 families. Noctuidae and Pyralidae and genus Zygaena sp. (Zygaenidae) were seen to be the mostly studied for cannibalism. Herein, one more family Cossidae gets added to the list making it 46 species under 12 families.

3 illus, 1 table, 37 ref

040690   BANDARU G, PONNUSAMY D, CHUNDURI S (ICAR-Indian Institute of Oilseeds Research, Hyderabad - 500 030, Telangana, Email: b.gayatri@icar.gov.in) : Virulence of entomopathogenic nematodes against castor capsule borer Conogethes punctiferalis (guenée). Indian J Entomol 2020, 82(1), 200-5.

Two EPN species, Heterorhabditis indica Poinar and H. bacteriophora Poinar were evaluated for their virulence and reproductive potential against late instar larvae of castor capsule borer Conogethes punctiferalis (Guenée) with wax moth Galleria mellonella (L.) used for comparison. Late instar larvae were found highly susceptible at all six infective juvenile (IJ) concentrations (30, 60, 90, 120, 150 and 200 IJ larva^-1) of both the EPNs evaluated. At 48 hr post infection, complete larval mortality was observed in both capsule borer and wax moth. LC₅₀ values of 570 and 40.1 IJ larva^-1 for capsule borer and 15.1 and 5.4 IJ larva^-1 for wax moth were observed with H. bacteriophora and H. indica, respectively at 24 hr exposure. These values indicated the highly virulent nature of the EPNs. In capsule borer, maximum IJ production/ cadaver for H. bacteriophora and H. indica was 84 ± 4.6 x 103 IJs larva⁻¹ and 98 ± 6.7 x 10³ IJs larva⁻¹ at an inoculation concentration of 30 IJs larva⁻¹. In wax moth, it was 262.3 ± 27.2 x 10³ IJs larva⁻¹ and 231.9 ± 8.1 x 10³ IJs larva⁻¹ for H. bacteriophora and H. indica, at an inoculation concentration of 90 IJs larva⁻¹. These results reveal that host size is very important in fixing optimal inoculation concentration and final IJ production, and that both the EPNs have good potential for the management of capsule borer in castor.

2 illus, 1 table, 22 ref

040689   KARUPPAIAH V, SOUMIA P S, SINGH M (ICAR-Directorate of Onion and Garlic Research, Rajgurunagar, Pune - 410 505, Email: karuppaiahv2008@gmail.com ) : Field efficacy of newer insecticides against onion thrips thrips Tabaci lindeman. Indian J Entomol 2020, 82(1), 195-9.

Field experiments were conducted for two consecutive seasons (kharif and rabi) during 2017-18 to evaluate the efficacy of three newer insecticides, including cyantraniliprole (@ 90 & 120 gm ai/ha), emamectin benzoate (@ 11 & 22 gm ai/ha), tolfenpyrad @ 125 ai/ha along with a conventional insecticide, profenofos @ 160 ai/ha. A total of seven treatments, including untreated control, were imposed with a randomized block design having three replications. All the insecticides were found effective against thrips. Profenofos @ 160 ai/ha was the most effective with reduction of 86.8-90% of population of thrips, low leaf curing and a maximum bulb yield (20.8-24.2 t/ha). Cyantraniliprole @ 120 gm ai/ha was the next best with 73.8- 79 % decrease of thrips population, low leaf curling index and higher bulb yield (20.9-22.1 t/ha) and was on par with profenofos.

2 tables, 25 ref

040688   MEENA A, SHARMA R K, CHANDER S, SHARMA K, SINHA S R (Entomology Dep, ICAR-Indian Agricultural Research Institute, New Delhi - 110 012) : Efficacy of biopesticides against major arthropod pests and their natural enemies on okra. Indian J Entomol 2020, 82(1), 189-94.

Efficacy of six biopesticides against insect pest of okra was evaluated in terms of population reduction over control during kharif, 2016 and 2017. Four foliar applications were done and results revealed that all the treatments were effective. Neem-baan was the most effective at 3^rd and 7^th day in all the sprays against whitefly (65.25, 28.80), (64.35, 27.88), (64.82, 27.71), (63.65, 26.54) and leafhopper, (64.08, 26.35), (64.09, 27.20), (64.45, 27.44), (64.39, 27.35), respectively. Neem baan was also effective at 3^rd and 7^th day against red spider mite during 4th spray and brought significant reduction in the shoot and fruit borer infestation up to 62.67 %. Biopesticides treatments did not show any detrimental effect on the coccinellids and spiders’ populations. However, in laboratory experiments neem based pesticides brought significant reduction when treated aphid (A. gossypii) was fed to both species of coccinellids viz., C. septempunctata and C. sexmaculata. 3 % neem oil reported maximum feeding reduction (28.05 %) for C. septempunctata while in C. sexmaculata it was 34.74 %.

3 tables, 20 ref

040687   THAKUR H, SRIVASTAVA R P (Entomology Dep, Govind Ballabh Pant Univ of Agriculture and Technology, Pantnagar - 263 145, Email: himanshumaimor@gmail.com) : Persistent toxicity of spinosyn and diamide against Spodoptera litura (f.) on cowpea and soybean. Indian J Entomol 2020, 82(1), 183-8.

The persistent toxicity (PT) of three insecticides viz. spinetoram @0.01 %, chlorantraniliprole @0.006 % and flubendiamide @0.01 % has been determined on cowpea (Vigna unguiculata L. Walp.) and soybean (Glycine max L.) against 4d old larvae of Spodoptera litura (F.). The order of persistent toxicity was same for both the crop plants at 72 hours after feeding (HAF) i.e. spinetoram @0.01 % > chlorantraniliprole @0.006 % > flubendiamide @0.01 %. On cowpea plant at 48 HAF, spinetoram showed the maximum PT value but chlorantraniliprole and flubendiamide showed the same PT value and at 24 HAF the order of persistent toxicity was spinetoram > flubendiamide > chlorantraniliprole; on the other hand on soybean the order of persistence was as spinetoram > chlorantraniliprole > flubendiamide for all 24, 48 and 72 HAF. On cowpea spinetoram @0.01 % was the most persistent insecticide with a PT value of 759.96 followed by flubendiamide @0.01 % (597.24) and chlorantraniliprole @0.006 % (575.00) at 24 HAF. After 72 HAF on the treated leaves, spinetoram again showed highest PT value of 1897.2 followed by chlorantraniliprole (1542.72) and flubendiamide (1279.98). On soybean, spinetoram @0.01 % was the most persistent with a PT value of 740.16 followed by chlorantraniliprole @0.006 % (PT= 491.60) and flubendiamide @0.01 % (476.00) at 24 HAF. At 72 HAF, spinetoram showed the maximum PT value of 1954.32 followed by chlorantraniliprole (1554.24) and flubendiamide (1485.60).

2 tables, 23 ref

040686   RABEENA I, CHINNAIAH C, KARTHIKEYAN G, USHARANI T R, BALAKRISHNAN N, KENNEDY J S, RAJABASKAR D (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: rajabaskard@yahoo.co.in) : An integrated approach for identification of Frankliniella schultzei (Trybom). Indian J Entomol 2020, 82(1), 179-82.

The blossom thrips Frankliniella schultzei (Trybom) (Thysanoptera:Thripidae) is a vector of tospoviruses and cause severe yield loss in several horticultural and agricultural crops. A study was conducted to identify the thrips species associated with GBNV (groundnut bud necrosis virus) hotspot regions of tomato in Tamil Nadu and Karnataka states using taxonomic, SEM and molecular diagnosis. Morphological distinguishing characters of F. shultzei include: eight segmented antennae, head with three pairs of ocellar setae, veins of forewing presenting continuous and equally spaced setae, five and two pairs of pronotal and metanotal setae, and absence of comb at eighth abdominal segment. The SEM analysis confirmed these and the PCR amplification showed 99 % similarity with F. schultzei. It is concluded that F. schultzei was associated in all the GBNV hotspot regions.

4 illus, 30 ref

040685   JANANI M, RANI B U, SURESH K (Krishi Vigyan Kendra, Madurai - 625 104, Email: ushateja@yahoo.com) : Evaluation of ecofriendly ipm modules against key insect pests in bitter gourd. Indian J Entomol 2020, 82(1), 172-8.

Field experiment was conducted at Malayalthanpatti Village, Madurai District, Tamil Nadu during March to June 2018 to evaluate three IPM modules viz., Farmer’s practice (M1), Recommended practice (TNAU)(M2), IPM suggested module (M3) for the management of key insect pests of bitter gourd viz., aphid, whitefly, leaf eating caterpillar, fruit fly, hadda beetle and pumpkin beetle. The suggested module (M3) comprising basal application of neem cake @ 250 kg/ ha, foliar application of NSKE 5 % at 20 DAP, installations of Barrix trap (25 traps/ ha) @ 30 DAP, foliar spray of Bt @ 2g/ l of water @ 40 DAP, foliar spray of chlorantraniliprole 150ml/ha at 60 DAP led to minimum population of aphids (2.08/ 3 leaves), whitefly (2.29/ 3 leaves), leaf eating caterpillar (0.65/ plant), hadda beetle (0.82/ plant) and pumpkin beetle (0.73/ plant). Fruit fly infestation was also minimum (6.80 %) in the suggested module (M3) giving maximum yield (28.89 t/ha).

4 tables, 16 ref

040684   JANANI M, RANI B U, SURESH K, YOGAPRIYA A (Krishi Vigyan Kendra, Madurai - 625 104, Email: ushateja@yahoo.com) : Biosafety of insecticides to the Indian bee Apis cerana indica (f.). Indian J Entomol 2020, 82(1), 170-1.

Contact toxicity study was conducted at the Insectary, Agricultural College and Research Institute, Madurai during 2017-18 to determine the safety of new insecticides/ biopesticides to the Indian honey bee Apis cerana indica. The results revealed that at 24 hr after exposure, the order of mortality was: thiodicarb 75 % WP @ 750g/ ha (100 %) > imidacloprid 17.8 SL @ 250 ml/ ha (98.67 %) > dichlorvos 76 EC @ 400 ml/ ha (98.33 %) > spinosad 45 % SC @ 160 ml/ ha (76.67 %), spiromesifen 22.9 SC@ 500 ml/ ha (73.33 %) > chlorantraniliprole 18.5 SC @ 150ml/ ha (70 %) > chlorantraniliprole 18.5 SC @ 125 ml/ ha (63.33 %).

1 table, 9 ref

040683   VINOD G, KUMARI K, SAHA T (Entomology Dep, Bihar Agricultural Univ, Sabour, Bhagalpur - 813 210, Email: megarimavinod94@gmail.com) : Identification and behavioural pattern of litchi fruit borer Conopomorpha sinensis bradley. Indian J Entomol 2020, 82(1), 167-9.

Conopomorpha sinensis Bradley is one of the major pests of litchi. The present study is on the taxonomy, symptoms and behaviour of C. sinensis. The adult moths were identified as C. sinensis a small dark coloured moth. Female moths preferred to oviposit on the pericarp of fruits. Its larvae punctured the peduncle of fruits and started feeding on the seed neck and made holes filled with frass inside the nut, and site of pupation was leaves.

1 illus, 5 ref

040682   TAMILNAYAGAN T, SRINIVASAN M R, SELVARAJAN R, SUBRAMANIAN S, SARAVANAN P A, MUTHUSWAMI M, SIVAKUMAR U, KUMARANAG K M (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: mrsrini@tnau.ac.in) : Designing of RT-lamp primers and detection of sac brood virus from Indian honey bee Apis cerana indica (f.). Indian J Entomol 2020, 82(1), 162-6.

The present investigation was carried out on the sac brood virus (SBV) in Apis cerana indica of Tamil Nadu during 2018-19. Colonies were examined in major beekeeping regions, and diagnosis of SBV using specific primers was done to amplify the 834bp fragments through RT-PCR. Later these were compared with that of RT-LAMP (Reverse Transcriptase-Loop Mediated Isothermal Amplification), and a new set of primers were designed. In the RT-LAMP, the samples with SBV reacted with royal blue coloured hydroxyl naphthalene blue (HNB) dye and produced sky blue coloured fluorescence in positive reaction while the original royal blue colour was retained in the virus free samples. From among the cDNA isolated from 20 supposedly SBV infected samples, 10 and 8 samples were detected to have the viral cDNA by RT-PCR and RT-LAMP, respectively. RT-PCR is thus the best method for SBV diagnosis in the laboratory while the RT-LAMP is suitable for field level diagnosis.

2 illus, 2 tables, 33 ref

040681   SEMA T, CHATURVEDI D P, ALEMLA A O M, ASANGLA I T, SINGH H K (Entomology Dep, Nagaland Univ, Medziphema - 797 106, Nagaland, Email: tinatoly@gmail.com) : Oviposition behaviour of maize stem borer chilo partellus swinhoe on genotypes of maize. Indian J Entomol 2020, 82(1), 160-1.

Oviposition behaviour of maize stem borer (Chilo partellus Swinhoe) on different genotypes of maize was studied at the School of Agricultural Sciences and Rural Development (SASRD), Nagaland University during 2013-2014. Eight genotypes viz., Tsük mendi, Boboü, Nashi nukjang temüsungla, DC61-A (Improved), Asubokipileu, Yetaü, Ayeghüu and Vijaya (composite) were evaluated. Reduction in oviposition showed significant variations in both the choice and no-choice tests: maximum reduction was in Nashi nukjang temüsungla (98.06 %) followed by Yetaü (80.21 %), Ayeghüu (69.81 %) and Tsük mendi (63.51 %) in choice test and Nashi nukjang temüsungla (75.70 %) in no-choice test. The least reduction was exhibited by Boboü of 27.84 % and 26.76 % in both choice and no-choice tests.

1 table, 5 ref

040680   KAUR S, SAXENA A, JOHAL M S (Zoology Dep, Akal Univ, Bathinda - 151 302, Punjab, Email: kaur65873@gmail.com) : Water quality and aquatic Coleoptera and Hemiptera in two ponds of Mansa District, punjab. Indian J Entomol 2020, 82(1), 156-9.

Present study evaluates the diversity and abundance of aquatic Coleoptera and Hemiptera, and relate these with the physicochemical parameters of water in the two selected ponds of Mansa district, Punjab. Collections made during December, 2017 to November, 2018 revealed 16 species of aquatic Coleoptera and Hemiptera. Maximum fauna was observed during summer followed by post-monsoon, monsoon and winter seasons. Physicochemical water parameters viz., temperature, pH, free carbon dioxide, dissolved oxygen, nitrate and phosphates were correlated with the diversity attributes.

1 table, 31 ref

040679   SHANTHI M, SRINIVASAN G, KALYANASUNDARAM M (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ, Madurai - 625 104, Email: cshanthiento07@gmail.com) : Population dynamics of sucking pests and their natural enemies in okra as influenced by weeds. Indian J Entomol 2020, 82(1), 151-5.

Field experiments were conducted to study the seasonal incidence of major sucking insect pests of okra viz., leafhopper, Amrasca biguttula biguttula Ishida, whitefly, Bemisia tabaci Gennadius, and aphids, Aphis gossypii Glover and their natural enemies viz., coccinellids and spiders of okra at the Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai during rabi and summer seasons of 2015-16. Summer sown okra crop was more susceptible to sucking insect pests with more population of natural enemies than rabi okra crop. In rabi crop, the incidence of leafhopper commenced from third week of November 2015, aphid from third week of December 2015 and there was no whitefly incidence. In summer crop, leafhopper and aphid reached maximum in third week of April 2016, while whitefly during first week of April 2016 itself. Results revealed that leafhopper and whitefly had significant positive relationship with maximum and minimum temperature while sucking pests were negatively correlated with relative humidity and rainfall. Okra crop with partial weeding harboured more sucking insects like leafhopper, whitefly and aphids than the weed free okra plot. In addition, maximum population of natural enemies viz., coccinellids and spiders was found in partially weeded plot.

2 tables, 24 ref

040678   BORANG C, GUPTA M K, LONGKUMER I Y (Entomology Dep, Dr. Rajendra Prasad Central Agricultural Univ, Pusa - 848 125, Email: dawson567890@gmail.com) : Seasonal occurrence of adult diapause in galerucella placida baly (chrysomelidae: coleoptera). Indian J Entomol 2020, 82(1), 147-50.

An experiment was conducted in the laboratory of Department of Entomology, College of Agriculture, Central Agricultural University, Imphal during 2017- 2018 to study the seasonal occurrence of adult diapause in Galerucella placida Baly based on feeding and oviposition behaviour. It was observed that the induction of diapause based on feeding behaviour commenced from first fortnight of October, 2017 onwards which was 9.00% and increased gradually and complete diapause reached by the end of December, 2017 (100 % from second fortnight of November to second fortnight of December, 2017). Based on oviposition the initiation of diapause was observed from first fortnight of October onwards, which accounted for 39 % and complete diapause reached by the end of December (100 % from first fortnight of November to second fortnight of December). Maximum (r= -0.603**) and minimum temperature (r= -0.583**) were observed to be negatively correlated with diapause based on feeding whereas minimum temperature (r=0.573**) had a significant positive relationship as seen with oviposition.

2 tables, 18 ref

040677   CHANDER S, MANJU, MOHAN B, PODDAR N (Entomology Dep, ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, Email: schanderthakur@gmail.com) : Efficacy of pesticides against rice plant hoppers, and insecticide and fungicide compatibility. Indian J Entomol 2020, 82(1), 143-6.

Insecticides viz., spinetoram (6 %)+ methoxyfenozide (30 %) 36EC @ 0.75 ml/l, triflumezopyrim 106SC @0.48 ml/l; fungicide, hexaconazole 5SC @ 2.0 ml/l, tricyclazole 75WP @ 0.6 ml/l, and their combinations viz., spinetoram (6 %) + methoxyfenozide (30 %) + hexaconazole @ 0.75+2.0 ml/l, spinetoram (6 %) + methoxyfenozide (30 %) + tricyclazole @ 0.75+0.6 ml/l, triflumezopyrim+hexaconazole @ 0.48+2.0g/l and triflumezopyrim+ tricyclazole @ 0.48+0.6 g/l along with an untreated check were evaluated against rice BPH on Pusa Basmati 1121 during kharif 2017 and Pusa Basmati 1637 during 2018. Brown planthopper (BPH) Nilaparvata lugens (Stal.) appeared in outbreak numbers in the experiments at 90 days after transplanting (DAT), while incidence of other insect pests and diseases viz., stem borer, leaf folder, sheath blight and blast remained very low. Amongst pesticides, triflumezopyrim+ tricyclazole (2017) and triflumezopyrim (2018) were observed to be the most effective treatment against BPH followed by triflumezopyrim+ hexaconazole. The efficacy of the combination products against BPH depicted that the fungicides did not affect the effectiveness of the insecticide. The fungicides, tricyclozole and hexaconazole were thus compatible with triflumezopyrim.

2 tables, 16 ref

040676   RIMPY, VERMA K S (Entomology Dep, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, Himachal Pradesh, Email: rimpynanglia@gmail.com) : Toxicity of some insecticides against Agrotis spp. infesting cabbage. Indian J Entomol 2020, 82(1), 139-42.

Toxicity of seven insecticides viz., bifenthrin, chlorantraniliprole, cypermethrin, emamectin benzoate, flubendiamide, novaluron and spinosad was evaluated through leaf dip and topical methods of bioassay against third instar larvae of Agrotis ipsilon (Hufnagel) and A. segetum (Denis and Schiffermuller). Based on LC₅₀ values, chlorantraniliprole was found the most effective against third instar larvae of A. ipsilon (0.0298 ppm) as well as A. segetum (0.0321 ppm) while cypermethrin was the least effective, with LC₅₀ values of 31.0706 and 33.4636 ppm, respectively. On the basis of LD₅₀, chlorantraniliprole was observed to be the most effective against third instar larvae of A. ipsilon (0.00086 μg a.i./ larva) as well as A. segetum (0.00085 μg a.i./ larva) while novaluron being the least effective with LD₅₀ values 0.8382 and 0.7441 μg a.i./ larva, respectively.

1 table, 12 ref

040675   JOSHI M J, VERMA K S, CHANDEL R S (Entomology Dep, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, Email: mj1107006@gmail.com) : Feeding inhibition with bioformulations in cut worms Agrotis ipsilon (hufnagel). Indian J Entomol 2020, 82(1), 134-8.

Feeding inhibition study of bioformulations viz., Neemastra, Agniastra, Brahmastra, Dashparni ark and garlic + ginger + mint mixture was carried out against fourth, fifth and sixth instar larvae of A. ipsilon. These bioformulations were observed to be not giving significant mortality in the fourth, fifth and sixth instar larvae but result in feeding inhibition. Concentrations ranging from 1.5 % to 24 % were evaluated for this action. It was observed that Dashparni ark was the most effective causing maximum feeding inhibition to later instar larvae of A. ipsilon followed by Brahmastra, Agniastra, Neemastra and garlic+ ginger+ mint mixture. Dashparni ark was found 1.35, 1.34 and 1.26x more effective compared to the least effective garlic + ginger + mint mixture against fourth, fifth and sixth instar larvae of A. ipsilon, respectively.

1 table, 21 ref

040674   PATEL D N, PATEL D R (Entomology Dep, Navsari Agricultural Univ, Navsari, Gujarat - 396 450, Email: patel.devendra2829@yahoo.com) : Efficacy of insecticides against diamond back moth in cauliflower. Indian J Entomol 2020, 82(1), 131-3.

Efficacy of insecticides against diamond back moth in cauliflower revealed that among all the treatments significantly lower larval population and higher yield was obtained with chlorantraniliprole 18.5 SC @ 0.006 %. It was at par with spinosad 45 SC @ 0.009 % followed by emamectin benzoate 5 WSG @ 0.002 % and flubendiamide 39.35 SC @ 0.096 %. Maximum avoidable loss of 45.24 % and higher yield (19.98 t/ ha) was obtained with chlorantraniliprole followed by spinosad. Maximum cost benefit in terms of ICBR was observed with spinosad 45 SC @ 0.009 % (1:9.93) followed by emamectin benzoate 5 WSG @ 0.002 % (1:8.64).

2 tables, 8 ref

040673   FAIZ A, AHMED R (Zoology Dep, Barama Coll, Barama - 781 346, Email: itzfaizhere@gmail.com) : Insect pests of black gram in rice based farming. Indian J Entomol 2020, 82(1), 128-30.

This study was conducted during August to November in 2016 and 2017 to record the insect pests that attack black gram grown in a sequential farming at rice nursery located in the village Dehar Kuriha under Hajo revenue circle of Assam. Thirteen insect species under Lepidoptera, Coleoptera, Orthoptera and Hemiptera were identified, with more than 50 % belonging to the Hemiptera. Incidence and damage of Omiodes indicata, Maruca testulalis and Apion clavipes were found high. The highest mean density (227.2/ plot and 231.11/ plot) and relative density (21.8 % and 22.2 %) was found in Apion clavipes. Most of the insect pests made their appearance in the 39^th standard week of the crop growth.

4 tables, 10 ref

040670   BOSE A S C, MURUGAN M, SHANTHI M, RAMALINGAM J, MINI M L (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ (TNAU), Madurai - 625 104, Email: parthasuvi@gmail.com) : Prevalence of neonicotinoid resistance in cotton aphid Aphis gossypii (glover). Indian J Entomol 2020, 82(1), 110-4.

Bioassays were conducted with neonicotinoids viz., acetamiprid, clothianidin, dinotefuran, imidacloprid, thiacloprid and thiamethoxam on field populations of cotton aphids collected from ten locations of Tamil Nadu. Perambalur population was found to be resistant to all six neonicotinoids with LC₅₀ values of 0.884, 1.718, 1.535 and 0.521 ppm for acetamiprid, imidacloprid, thiamethoxam and thiacloprid, respectively. Aphids from all the locations showed resistance to thiamethoxam with LC₅₀ values in range of 0.034 to 2.184 ppm. No resistance to clothianidin and dinotefuran was found with resistant ratios of 3.00 and 4.56-folds. Hence, clothianidin and dinotefuran could be promoted against aphids in rotation to sustain their efficacy.

1 table, 15 ref

040669   PAVITHRAN S, CHITRA N, ARULPRAKASH R (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: chitra.bookworm@gmail.com) : Checklist of Odonata in the rice fields of India. Indian J Entomol 2020, 82(1), 99-109.

Odonata is one of the most important predators in the rice ecosystems and their occurrence in rice fields from different parts India was inventoried. Odonata diversity in the rice fields from India comprised of 127 species under 71 genera of 13 families. Anisoptera (Dragonflies) were dominant with 81 species and 52 genera under six families over Zygoptera (Damselflies) (46 species, 19 genera under 7 families). Libellulidae (Anisoptera) was the most speciose family with 53 species and 32 genera followed by Coenagrionidae (Zygoptera) with 27 species and 7 genera. Orthetrum sabina (Drury, 1770) (Libellulidae) was observed to occur in all the rice fields studied across the country. Analysis of Odonata from rice fields in different biogeographical regions of India revealed that the order of dominance of species was: Gangetic Plain Zone (76 species) > Western Ghat Zone (57 species) > Deccan Plateau Zone (54 species) > Semi Arid Zone (39 species) > Northeast Zone (14 species) > Coastal Zone (10 species) > Himalayan Zone (1 species). Odonata in rice fields of the Western Ghat Zone and Deccan Plateau Zone were found to have a maximum of 50.48 % similarity.

2 tables, 36 ref

040667   SUNDARARAJ R, SELVARAJ K, SWAMY C M K, RANJITH M, SUMALATHA B V (Forest Protection Div, ICFRE-Institute of Wood Science and Technology, Bengaluru - 560 003, Email: K.Selvaraj@icar.gov.in) : First record of the invasive woolly whitefly Aleurothrixus floccosus (maskell) from India. Indian J Entomol 2020, 82(1), 88-91.

Occurrence of the highly polyphagous woolly whitefly, Aleurothrixus floccosus (Maskell) (Hemiptera: Aleyrodidae) on guava (Psidium guajava L.) was recorded as invasive in India. The whitefly is believed to be neotropical origin but is now found throughout the warmer parts of the world. The identification of A. floccosus was done through taxonomic characters of puparium and reconfirmed by DNA barcoding of adult whitefly using partial (658 bp) mitochondrial cytochrome oxidase 1 (CO1) gene. This is the first report of the breeding of A. floccosus on guava in India. Identification details, diagnosis, symptoms of damage and impact of its infestation on guava and citrus are discussed.

3 illus, 14 ref

040666   SHARMILA R, SUBRAMANIAN S (Nematology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: subbunema@gmail.com) : In vivo and in vitro culturing and virulence of Heterorhabditis indica and Steinernema glaseri. Indian J Entomol 2020, 82(1), 85-7.

The comparative virulence of Heterorhabditis indica and Steinernema glaseri multiplied in vivo and in vitro is evaluated on Corcyra cephalonica in this study. The results reveal that in vivo mass multiplied nematodes caused the least LC₅₀ (15.83 IJ/larva) and LT₅₀ (34.08 h/larva). Among in vivo and in vitro, invivo one was superior.

1 table, 15 ref

040665   RAJABASKAR D, RABEENA I, AISHWARYA P, KARTHIKEYAN G, USHARANI T R, KENNEDY J S (Agrl. Entomology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: rajabaskard@yahoo.co.in) : Melon thrips Thrips palmi karny association with bud necrosis disease in water melon. Indian J Entomol 2020, 82(1), 80-4.

Survey was conducted in Watermelon bud necrosis virus (WBNV) hotspot regions in Tamil Nadu and Karnataka to identify the associated and predominant thrips species. The mean population of thrips ranged from 0.35 to 1.64 / shoot and mean WBNV incidence ranged from 25 to 56 % in different regions. A phylogenetic relationship of thrips sample collected from 29 locations of WBNV hotspot regions showed that Thrips palmi Karny was the predominant species and the DNA sequence analysis matched with more than 99 % similarity.

1 illus, 1 table, 28 ref

040664   VENKANNA, Y, SUROSHE S S, BHAGYASREE S N, KUMARI S (Entomology Div, ICAR- Indian Agricultural Research Institute, New Delhi - 110 012, Email: sachinsuroshe@gmail.com) : Biology of Cheilomenes sexmaculata (f.) on cotton aphid Aphis gossypii glover. Indian J Entomol 2020, 82(1), 75-9.

The six spotted ladybeetle, Cheilomenes sexmaculata (Fabricius) is one of the important native aphidophagous species widely distributed all over the country. It is known to prey on different soft bodied insects preferably aphids. Hence it attracted attention for its predatory potential on many important aphid pests, cotton aphid Aphis gossypii Glover as being one of them. Keeping in view of this tritrophic combination, investigations were carried out to know the prey-host specific biology of C. sexmaculata on A. gossypii hosted by cotton. Cotton aphid A. gossypii was found to be the most suitable host for C. sexmaculata as evidenced by faster development (6.21±0.03 days), more longevity of female (67±4.7 days) and high fecundity (756.5 eggs/ female). These positive biological attributes of C. sexmaculata on A. gossypii could contribute to it’s mass production for augmentative biological control.

1 table, 25 ref

040662   NAGA K C, BUCKSETH T, SUBHASH S, BAIRWA A, VERMA G, KUMAR R, MALIK K, SHARMA S, CHAKRABARTI S K (ICAR-Central Potato Research Institute, Shimla - 171 001, Email: kailashnaga3j@gmail.com) : Transmission efficiency of potato leaf roll virus (plrv) by potato aphid Aulacorthum solani and green peach aphid Myzus persicae. Indian J Entomol 2020, 82(1), 68-71.

The present study investigated the relative transmission efficiency of Potato Leaf Roll Virus (PLRV) by two aphid species on potato. Five aviruliferous aphids of both the species were allowed to acquire the PLRV from virus infected potato plant for 96 hrs (Acquisition Access Period) then transferred to oneweek old microplants of variety Kufri Jyoti and allowed to feed for 96 hr (Inoculation Access Period) in order to inoculate the virus. The virus transmission was terminated by spraying imidacloprid 18.5 SL @ 0.03 %, and then the plants were incubated for one month at 26±2^oC. The plants were tested for the virus presence after the incubation by polymerase chain reaction using coat protein specific primers. The result revealed that both the aphid species had transmitted the PLRV, but the transmission efficiency varied greatly as A. solani could transmit the PLRV with 7.1 % efficiency whereas M. persicae transmitted with greater efficiencies (66.6 %).

2 illus, 24 ref

040661   SINGH R T, DEVI M B, DEVI A K, CHINGANGBAM D S (CMJ Univ, Meghalaya - 793 101, Email: dhananjoych@gmail.com) : Sex chromosomes of salticid spider Plexippus paykullii. Indian J Entomol 2020, 82(1), 64-7.

The spermatogenetic studies of Plexippus paykuhli was carried out from 13 adults from three habitats of the campus of D M College of Science, with hypotonic fixative treatments and 4 % Giemsa staining. The chromosomes number in pachytene stage was confirmed to be 28 and sex determination mechanism was X₁ X₂ 0 type. Each gamete received 15 or 13 chromosomes and distribution seem to be disturbed in latter stage of the meiosis. During early stages of interphase, the two X chromosomes started as two dots and after S phase they became as larger, irregular, heteropycnotic body inside the nucleus. The dots were nearly jointed together and could be seen jointed till early pachytene probably at the centromeric regions. From the pachytene stage onwards close association could be seen till the metaphase I stage. The two X chromosomes were heteropycnotic throughout the meiosis I and late replicating. These were fairly joined together at the centromeric region till the early pachytene stage but seem to separate out during the later stages.

13 illus, 19 ref

040660   RAMAIAH M, SRI N R, MAHESWARI T U (Entomology Div, ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, Email: ramaiahmogili@gmail.com) : Geometrics of growth in four species of Spodoptera. Indian J Entomol 2020, 82(1), 61-3.

Four species of Spodoptera (Noctuidae: Lepidoptera) viz., S. litura (F.), S. mauritia Boisduval, S. exigua (Hub.) and S. frugiperda ( J.E. Smith) were reared on castor, rice, chickpea and on artificial diet, respectively under laboratory conditions during 2017- 2019 at the Department of Entomology, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad. The observations on the geometrics of growth in terms of width of head capsule (widest head width) confirming to Dyar’s law were made. In S. litura the linear growth ratio was 1.45 confirming a regular geometrical progression in the consecutive larval instars. In S. mauritia and S. frugiperda it was 1.62 and 1.94, respectively; but in S. exigua it was observed to vary as 1.41 (between 1^st and 2^nd instars), 2.61 (2^nd and 3^rd instars), 1.05 (3^rd and 4^th instars) and 1.64 (4^th and 5^th), with a mean of 1.68, and slightly deviating from Dyar’s law. In specific, it was of the ratio of 2.61 between 2^nd and 3^rd instars showing the maximum progression factor, and confirming the variation among the four species evaluated.

1 table, 20 ref

040659   SHAH V, SRIVASTAVA C, SUBRAMANIAN S, NAVEEN N C (Crop Protection Div, ICAR-Central Institute for Cotton Research, Nagpur - 440 010, Email: vivek4256@gmail.com) : Host associated variations in esterase and glutathione-s- transferase in Bemisia tabaci. Indian J Entomol 2020, 82(1), 56-60.

In the present study, the populations of Bemisia tabaci were collected from five locations on cotton and subsequently reared and established on brinjal and tomato to study host associated variations in esterases and glutathione-s-transferase. Pyrethroids, carbamates and organophosphates were the most widely used group of insecticides in these locations. Frequent failure of these have been continuously reported that may be attributed to enhanced levels of detoxifying enzymes due to continuous selection pressure. Significant variation in both the enzymes levels was found across the population and host. Khandwa population recorded the maximum esterase activity with 2.21 fold (4.33± 0.48 mOD/min/0.5 B. tabaci equivalent), 1.67 fold (4.83± 0.39mOD/min/0.5 B. tabaci equivalent) and 1.69 fold (5.34± 0.38 mOD/min/0.5 B. tabaci equivalent) for brinjal, cotton and tomato, respectively. Population from Khandwa and Sriganganagar recorded the maximum activity of glutathione-s-transferase with 1.71 folds (243.77± 6.56nmol/min/B. tabaci equivalent, 243.88± 25.66nmol/min/B. tabaci equivalent) for both populations on brinjal; 1.75 (263.53± 17.53nmol/min/B. tabaci equivalent) and 1.76 (265.74± 18.04nmol/min/B. tabaci equivalent) folds on cotton; 1.72 (289.28± 9.82nmol/min/B. tabaci equivalent) and 1.66 (279.40± 23.21nmol/min/B. tabaci equivalent) folds on tomato, respectively, taking New Delhi population as unity. Tomato recorded the maximum value for both the enzymes followed by cotton and brinjal as host.

1 table, 29 ref

040658   KAUR T (Kanya Maha Vidyalaya, Jalandhar - 144 004, Email: tamanreetkaur@gmail.com) : Dvelopment of rice moth Corcyra cephalonica on sorghum based growth media. Indian J Entomol 2020, 82(1), 54-5.

Laboratory experiment was conducted to evaluate the life cycle of rice moth Corcyra cephalonica (Stainton) on sorghum grains based growth media. Life parameters viz., larval, pupal and total developmental period, adult emergence and sex ratio were evaluated. The larval period was the shortest in first and third instars and longest in sixth instar. The adult emergence observed was 56.66 % with 49.99 % female moths.

1 table, 10 ref

040657   ROJASARA A D, PATEL D R (Entomology Dep, Navsari Agricultural Univ, Navsari - 396 450, Email: patel.devendra2829@yahoo.com) : Evaluation of edible and non-edible oils against rice weevil Sitophilus oryzae (l.) in stored paddy. Indian J Entomol 2020, 82(1), 51-3.

Some edible and non edible oils were evaluated against the rice weevil Sitophilus oryzae (L.) infesting paddy during 2018-19 at the Biological control Laboratory and P.G. Research Laboratory, Department of Agricultural Entomology, N. M. College of Agriculture, Navsari Agricultural University, Navsari. The results indicate that significantly maximum mortality (79.58 %) with minimum seed damage (2.56 %) and weight loss (1.58 %) was observed in the seeds treated with mustard oil @1 % followed by castor oil (4.22 %, 2.88 %, 70 %, respectively); and sesame oil at 1 % was the least effective, resulting in maximum seed damage (9.93 %), weight loss (6.40 %) and the least mortality (52.09 %).

1 table, 8 ref

040655   PRASANTHI G, DEY D, SHIVAY Y Sq (Entomology Div, ICAR- Indian Agricultural Research Institute, New Delhi - 110 012, Email: ddeyiari@hotmail.com) : impact of organic and conventional practices on rice yellow stem borer Scirpophaga incertulas (Walker) and its egg parasitoids. Indian J Entomol 2020, 82(1), 45-7.

Organic farming, cultivation without pesticides and fertilizers promotes plant and animal diversity including insects. The present study conducted at the research farm of the ICAR–Indian Agricultural Research Institute, New Delhi evaluates the impact of organic and conventional IPM practices against rice yellow stem borer (YSB) Scirpophaga incertulas (Walker) (Crambidae: Lepidoptera). Infestation at different stages of the crop and the efficiency of its egg parasitoids were assessed. Results indicated that infestation was more in conventional (0.59%) than the organic practice (0.47 %). Three egg parasitoids observed include: Telenomus dignus Gahan, Tetrastichus schoenobii Ferriere, and Trichogramma japonicum Ashmead in both the practices, and all these are new records for the Delhi/NCR region. Maximum parasitization was observed with T. dignus (6.59 %) followed by T. japonicum (0.58 %) and T. schoenobii (0.42 %), and it was during October. Egg parasitization was more in the organic practice (3.27±3.08) compared to the conventional one (1.18±0.99). The results reveal that T. dignus is the most dominant among the parasitoids observed.

1 illus, 1 table, 20 ref

040654   JEYARANI S, PRITHIVA J N (Agricultural Entomology Dep, Tamil Nadu Agricultural Univ, Coimbatore - 641 003, Email: jeyaranijawahar@gmail.com) : Efficacy of new molecules against tomato pin worm Tuta absoluta (Meyrick). Indian J Entomol 2020, 82(1), 40-4.

Tomato pinworm Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the major destructive invasive pests spread from South America to several parts of Europe, Africa and to India. Its incidence causes up to 90 % yield loss and reduction in fruit quality both under greenhouses and field conditions. Efficacy of certain new molecules viz., spinetoram 12 % SC w/v (11.7 % w/v) SC at different doses (30, 45 and 54 g ai ha^-1), flubendiamide 48 SC @ 60 g ai ha^-1 and lambda cyhalothrin 5 EC @ 15 g ai ha^-1 were evaluated against T. absoluta in two locations viz., Kaduchittipatti and B. Thrungipatti villages of Dharmapuri District during 2016-17 under open field conditions on hybrids “Sivam” and “Sagar”, respectively. Spinetoram 12 % SC w/v was effective at the higher dose of 54 g ai ha^-1 with the maximum reduction of leaf (89.15 and 88.18 %) and fruit damage (95.07 and 89.61 %) in both the locations, respectively followed by flubendiamide 48SC@ 60 g ai ha-1. These insecticides can be utilized for the management of T. absoluta subject to label claims for use on tomato.

2 tables, 15 ref

040653   SAINI V, DEY D (Entomology Div, ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, Email: ddey@iari.res.in) : Revision of hunting wasp genus Crabro (Crabronidae) with redescription of Crabro flavoniger dutt. Indian J Entomol 2020, 82(1), 36-9.

Holotype of the hunting wasp Crabro flavoniger Dutt, 1921 which was mentioned as deposited at the British Museum of Natural History, London (BMNH) is in the National Pusa Collection (NPC), IARI, New Delhi, India. This species is redescribed herein with additional diagnostics and illustrations. The male of this is still unknown. An annotated checklist of the genus Crabro from India with two species is included.

10 illus, 10 ref

040650   BHATTI J S, RETANA-SALAZAR A P, SOTO-RODRÍGUEZ G A (Zoology Dep, Delhi Univ, New Delhi - 110 007, Email: bhatti.js@gmail.com) : Taxonomic review ofjironiella retana & soto 2007, revalidated from synonymy under haplothrips, and jironiella saidi retana & soto 2007 restored from Haplothrips (Phlaeothripidae). Indian J Entomol 2020, 82(1), 24-8.

Jironiella Retana and Soto 2007, with a single species J. saidi Retana and Soto 2007, was described from Costa Rica, differing from Haplothrips by the absence of maxillary bridge. Literature until now provides a confusing picture of the taxonomy of Jironiella as well as its species. Goldarazena, Mound and zur Strassen (2008) synonymized Jironiella under Haplothrips Amyot and Serville 1843 and treated J. saidi as synonym of the North American species Haplothrips graminis Hood 1912. Soto (2011) reverted Jironiella back to its status as a valid genus and its species saidi to its original combination as a valid species. Subsequently, Thrips Wiki (most recently accessed 2019; not possible to ascertain the date when this action was taken in treated Jironiella similarly as synonym of Haplothrips, and J. saidi is listed as “Haplothrips (Haplothrips) saidi”. As a result of the present study, Jironiella is now removed from synonymy under Haplothrips and revalidated again as a separate genus based on its original characterization. And, J. saidi is restored again to its original combination; both actions had already been taken by Soto (2011). As now interpreted, Jironiella includes only a single species. It lacks a maxillary bridge, and is not related to Haplothrips graminis, under which it was initially synonymized, nor to Haplothrips. As originally defined (Retana and Soto, 2007), it is distinguished from Haplothrips by the absence of a maxillary bridge. Jironiella is related to Bamboosiella Ananthakrishnan 1960, which also lacks a maxillary bridge. However, in Jironiella the maxillary stylets are not restricted to the proboscis (= “mouth cone”) but extend forward to about one-third of the dorsal head length, whereas in Bamboosiella the maxillary stylets are restricted to the proboscis, or only just slightly extend into the head capsule. Incidental to this study, Haplothrips humilis Hood 1914 from Panama, synonymized under H. graminis Hood by Mound and Marullo (1996), is now revalidated as a good species, based on characters given in Hood’s original description.

8 illus, 9 ref

040649   KHATUN M R, DAS G, AHMED K S, KATO-NOGUCHI H (Entomology Dep, Bangladesh Agricultural Univ, Mymensing 2202, Bangladesh, Email: rokeya.entom@bau.edu.bd) : Inhibitory effect of buprofezin on the larval growth and development of Spodoptera litura (f.). Indian J Entomol 2020, 82(1), 20-3.

Effectiveness of buprofezin (Award 40 SC) was evaluated against 2^nd instar larvae of Spodoptera litura (F.) under laboratory conditions to analyse the growth and development at three concentrations viz., 200, 400, and 600 ppm with three application methods (direct or topical, indirect or leaf-dip and combined). Observations were made at 3 and 7 days after treatment and compared with untreated control. The results revealed that buprofezin significantly inhibited the larval weight, length and width, and the effect was dose, time and method dependent. Maximum (29.41 %) weight reduction was observed with 600 ppm in combined application method, and it was followed by leaf-dip (16.10 %) and topical application methods (13.80 %). Similarly, 20.89 % length and 19.58 % width were inhibited when larvae were treated with 600 ppm through combined application method. The next best result was found from 400 ppm and leaf-dip application method. The dose at 200 ppm and topical application methods were found to be the least effective.

1 table, 24 ref

040648   RAMZAN M, MURTAZA G, MUNAWAR N, MUAZ, MAJEED M, PERVEEN A, AZIZ M, IBRAHIM F, ULLAH A (Muhammad Nawaz Shareef Univ of Agriculture, Multan, Punjab, Pakistan, Email: ramzan.mnsua@gmail.com) : Plant characters of brinjal genotypes in relation to incidence of jassid Amrasca biguttula biguttula (Ishida). Indian J Entomol 2020, 82(1), 16-9.

Brinjal, Solanum melongena L. (Solanaceae) is attacked by jassid Amrasca biguttula biguttula (Ishida). At the University of Agriculture, Faisalabad the relationship of characters in brinjal genotypes to jassid incidence was evaluated under field conditions. Oval round, Purple Long, Green Long, Round Black and Purple cultivars were sown during June 2018 in nursery. Randomized Complete Block Design (RCBD) was followed with three replications. The plant characters were correlated with the jassid incidence and their effect was evaluated with simple and multiple linear regression. The results reveal that the hair density on the lamina showed the maximum effect, while height of plants and number of primary branches showed the least effect. The hair density and hair length on leaf lamina, midrib and vein are the most important characters. The moisture content and thickness of upper, middle and lower leaves showed positive but non-significant correlations.

3 tables, 31 ref

040647   FERDOUS M G, JAHAN M (Bangabandhu Sheikh Mujibur Rahman Science and Technology Univ, Gopalganj 8100, Bangladesh, Email: ferdous.kyorin@outlook.com) : Efficacy of insecticides and botanicals against the mango hopper Idioscopus clypealis. Indian J Entomol 2020, 82(1), 13-5.

Against the mango hopper Idioscopus clypealis, four insecticides viz., pymetrozine, spinosad, abamectin and acetamiprid and three botanicals (karanj oil, limonene and neem seed kernel extract) were evaluated. Pymetrozine was the most effective against all stages followed by acetamiprid. Among botanicals, limonene was the most effective.

1 table, 7 ref

040645   PRABHAKARAN P V, THAREMMAL A (Sree Narayana Coll, Kannur - 670 007, Kerala, Email: prabharamanthali@gmail.com) : Effect of water on birds and insect pests in the rice fields of Kannur District, Kerala, India. Indian J Ecol 2020, 47(2), 599-603.

The vast water bodies of a paddy field attract avian fauna. These water bodies serve as feeding, breeding, nesting and roosting places for the birds. During the winter, migratory birds arrive the water bodies. Since Mundakan (Rabi) season coincided with the winter Rabi season, there was highest number of birds in the paddy field. Most of the birds were insectivorous and carnivorous. Insectivorous birds consumed insect pests of paddy and as a result the number of insect pests in the paddy field with water bodies was less when compared with other paddy fields.

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