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R. Varatharajan Thysanoptera publications


Redescription and lectotype designation of Gynaikothrips microchaetus Ananthakrishnan & Jagadish (Thysanoptera: Phlaeothripidae). Zootaxa, 4701(6): 588-590. [Shyam, M., Johnson, TH., Rachana, R. R., Varatharajan, R. and Mound, LA.]

Involvement of flower thrips (Insecta: Thysanoptera) in pollination. In: ENVIS Newsletter “Special volume on Pollinators”, Published by ENVIS Centre on Biodiversity (Fauna), Zoological Survey of India, 25 (1-4): 30-33. [R. Varatharajan & Rachana, R. R.]

Bionomics and Management of Scirtothrips dorsalis Hood (Insecta: Thysanoptera: Thripidae) on Camellia sinensis (L) O.Kuntze in tea plantations of north eastern India. International Journal of Tropical Insect Science (Mini review). Springer. 39: 179-194. [R. Varatharajan, Somnath Roy, Anjali Km Prasad, Mukhopadhyay, A., & Muraleedharan, N.]

Three new records of the genus Helionothrips (Insecta: Thysanoptera: Thripidae) from India. Journal of Insect Biodiversity & Systematics, (Iran) 5 (3): 203-209. (ISSN: 2423-8112). [Th. Johnson, Shyam, M., Rachana, R. R., Varatharajan, R., Taptamani, H. & Majid Mirab-balou.]

Life table statistics and seasonal incidence of Thrips orientalis (Bagnall) (Insecta: Thysanoptera) on the flowers of Jasminum multiflorum (Burm.F). Annals of Plant Protection Sciences, (IARI – New Delhi), 27 (1): 49-53. [Shyam, M., Johnson, Th., Rachana, R. R & Varatharajan, R.]


Report of invasive thrips species, Thrips parvispinus (Karny) (Thripidae: Thysanoptera) on Dahlia rosea (Asteraceae) in Karnataka. Pest Management in Horticultural Ecosystems, 24 (2): 175-176. [ Rachana, R. R., Roselin, P. & Varatharajan, R]

On the collections of predatory thrips (Insecta: Thysanoptera) from NE India. Journal of Biological Control, 32(1): 8-13. DOI: 10.18311/jbc/2018/16149. [Varatharajan, R. Nishikant Singh, K. & Rachana, R. R.]

Thrips (Insecta: Thysanoptera) fauna from the Dampa Tiger Reserve, Mizoram, India. HALTERES, 9: 143-150. DOI: 10.5281/zenodo.1414132 143 [Thang Johnson & Varatharajan, R.]

Two new reports of thrips (Thysanoptera: Thripidae) from India. Journal of Threatened taxa. 10(2): 11312-11315 DOI: 11312-11315 [Rachana, R. R & Varatharajan, R.]

Plant hosts of Thrips (Insecta: Thysanoptera) from North Eastern India. International Journal of Tropical Agriculture, 36(2): 495-502. (ISSN: 0254-8755). [Varatharajan, R.]

New reports of thrips (Thysanoptera: Terebrantia: Thripidae) from India. Journal of Threatened taxa, 10(9): 12226–12229. DOI: [Rachana, R. R & Varatharajan, R.]


A new species of the genus Bregmatothrips (Thysanoptera: Thripidae) from the Andamon Islands of India. Zootaxa, 4317 (3): 597 – 600. [Rachana, R. R. & Varatharajan, R]

Additions to the thrips (Thysanoptera) fauna of Odisha, India. Journal of Applied & Natural Science, 9 (3): 1522- 1524. [Rachana, R. R. & Varatharajan, R.]

Relationships and revised status of Nagathrips (Thysanoptera: Phlaeothripidae). Zootaxa, 4231(4): 577-580. [Varatharajan, R., Johnson, Th., & Tarunkumar Singh, O.]

Checklist of Terebrantian thrips (Insecta: Thysanoptera) recorded from India. Journal of Threatened Taxa, 9 (1): 9748-9755. [Rachana, R. R. & Varatharajan, R.]

A new species of the genus Thrips (Thysanoptera: Thripidae) from the Western Ghats of India. Zootaxa, 4221 (4): 491-493. [Rachana, R. R. & Varatharajan, R.]


A new record of Franklinothrips megalops (Trybom, 1912) (Thysanoptera: Terebrantia: Aeolothripidae) from North East India. Journal of Biological Control, 30 (2): 119-120. [Rachana, R. R. & Varatharajan, R.]

Additions to the terebrantian (Insecta: Thysanoptera) fauna of Kerala, India. Journal of Applied & Natural Sciences, 8(3): 1507-1509. [Rachana, R. R. & Varatharajan, R].

Crotonothrips polyalthiae Mound & Nasruddin (Thysanoptera: Tubulifera) – a new record for India. Entomon, 41 (4): 355-360. [Rachana, R. R. & Varatharajan, R.]

Flower thrips (Insecta: Thysanoptera) of Manipur. Indian Journal of Entomology, 78(1): 56-60, DOI: 10.5958/0974-8172.2016.00011.0. [Chinthangkhomba, H. & Varatharajan, R.]

Pollination potential of thrips (Insecta:Thysanoptera) - an overview. Zoo's Print 31(4): 6-12. [Varatharajan R, Shyam Maisnam, Shimray CV & Rachana RR]


Density and diversity of thrips (Insecta: Thysanoptera) inhabiting the paddy & grassland ecosystems of Manipur, NE India. International Journal of Tropical Agriculture, 33(4): 2777-2782. [Varatharajan, R., Shyam Maisnam, Bala, Kh., & Johnson, Th].

Biology of Anaphothrips sudanensis Trybom on grass host Phragmites karka Retz. Trin. Ex Steud. Annals of Plant Protection Sciences, (IARI, New Delhi), 23(2): 218-222. [Magdalene, K., Bala Devi, Kh., Johnson, Th., & Varatharajan, R.]

Diversity of thrips (Insecta: Thysanoptera) fauna in a protected area: A case study of the Itanagar Wildlife Sanctuary, Arunachal Pradesh. In: Conceptual framework & Innovation in Agro-ecology and food Sciences. (Eds.): G. C. Mishra, Krishi Sanskriti Publications, 1-5. [Shyam Maisnam & Varatharajan, R.]

A new species of Tylothrips (Insecta: Thysanoptera) with new records of four terebrantians and four tubuliferans from Manipur, North East India. Journal of Threatened Taxa, 7(5): 7157-7163. [Varatharajan, R., Nishikanta Singh, K. & Bala, Kh.]


Thysanoptera fauna of Keibul Lamjao National Park, Manipur. Journal of Bombay Natural History Society, 111 (1): 19-28 [Nishikanta Singh, K & Varatharajan, R.]


Thrips (Insecta: Thysanoptera fauna) of Kaziranga National Park, Assam. Current Science, 105 (9): 1219-1223. [Chingthankhomba, H & Varatharajan, R.]


Thysanoptera fauna of the Itanagar wildlife sanctuary, Arunachal Pradesh. Records of Zoological Survey of India, 112 (Part-3): 35-43. [Shyam Maisnam, Varatharajan, R., Singh, O. T., Chakravorty, J.]

Biology of leaf gall inducing Thlibothrips manipurensis Muraleedharan, 1982 (Thysanoptera: Tubulifera: Phlaeothripidae) on Ardisia sp. near paniculata (Myrsinaceae) in north-eastern India. Beiträge zur Entomologie, 62(1): 69-76. [Taptamani, H., Varatharajan, R & Raman, A]

First record of two tubuliferan and four terebrantian species of Thysanoptera (Insecta) from north-eastern India. Journal of Threatened Taxa, 4 (14): 3369-3372. [Bala, K., Tarunkumar Singh, O.,Taptamani, H & Varatharajan, R.]

Diversity and diagnostics of Thysanoptera inhabiting leguminous plants with a note on life cycle of Megalurothrips peculiaris Bagnall. Indian Journal of Entomology, 74 (3): 274- 280. [Shyam, M, Singh, O. D., & Varatharajan, R.]

Grass inhabiting thrips of Manipur. In: Biodiversity Status and Conservation Strategies with special reference to North-East India. (Ed.): R. Varatharajan, pp.231-240 (ISBN: 978-81-923 343-1-8). [Bala, Kh., Shyam Maisnam, & R. Varatharajan]


SEM descriptions of an aquatic thrips, Organothrips indicus Bhatti (Thysanoptera: Thripidae). Entomon, 36 (1-4):11-15. [Taptamani, H., Nishikanta Singh, K., & Varatharajan, R.]

Occurrence of Thrips palmi Karny on Dahlia rosea Cav. (Asteraceae) in Manipur. Pest Management in Horticultural Ecosystems, 17 (1): 60-61. [Shyam Maisnam & Varatharajan, R.]

Thrips diversity and their functional attributes. In: Entomology, Ecology and Bio diversity, (Eds.): Tyagi B. K. & Vijay Veer. Scientific Publishers (India), 483-494. [Varatharajan, R. & Chochong,V.S.]


Thysanoptera fauna of the oak fields of Manipur and Nagaland. Entomon, 35 (2):139-142. [Varatharajan, R., Singh, O.T. Chochong, V.S., Keisa, T & Taptamani, H.]

Diversity and diagnostic features of thrips (Thripidae: Thysanoptera) infesting certain important crops. Annals of Plant Protection Sciences, 18(2): 283-292. [Varatharajan, R., Singh, H. C. Taptamani, H & Dwijamani, O.]

Comparative study on the diversity of Thysanoptera in monoculture and natural forests of Nagaland. Indian Journal of Entomology, 72 (3): 223-227. [Singh, O.T., & Varatharajan, R.]

Entomofauna of Kane Sanctury, Arunachal Pradesh, North East India. Journal of Threatened Taxa, 2 (13): 1392 – 1400. [Singh, O.T., Jana Chakrabarthy & Varatharajan, R.]

Evaluation of certain biopesticides against thrips and leaf roller infesting the tea plant. In: Non-Chemical Insect Pest Management, (Eds.): S. Ignacimuthu & B. V. David, Elite Publishing House Pvt. Ltd., New Delhi, 132-136. [Dhanapati, K., Taptamani, H., Loganathan, S., & Varatharajan, R.]


Research Status and scope for biological control of sucking pests in India: Case study of thrips, Journal Biological Control, 21: 1-19. [Sithanantham, S., Varatharajan,R., Chandish R Ballal & P.N. Gangavisalakshy.]

Diversity and vertical distribution of thrips of Nagaland. Hexopoda, Publ. by Zoological Survey of India, Chennai, 14(1): 1-4. [Singh, O. T. & Varatharajan, R.]

Thrips fauna from the tea fields of Southern and North-eastern India. Journal of Plantation crops, 35 (2): 128-129. [Varatharajan, R., Dhanapati, K. & Singh, H. C.]

Predatory efficiency and biology of two species of anthocorid bugs feeding on Megalurothrips distalis (Karny) (Thysanoptera: Thripidae). Journal of Biological Control, 21: 193-196. [Sangeeta, W., O.D, Singh, & Varatharajan, R.]


Diversity of Thrips fauna in thr hill and valley regions of Manipur. In: Biodiversity and Insect Pest Management, (Eds.): S. Ignacimuthu & S. Jayaraj, Narosa Publishing Co., New Delhi, 133-136. [Varatharajan, R. & Chochong, V.S.]

A new species of Liothrips (Tubulifera: Phlaeothripidae) from North-Eastern India. Oriental Insects, 40:377-378. [Bhatti, J.S., Varatharajan, R. & Tarunkumar, O.]

Endemic thrips (Thysanoptera: Insecta) from NORTHEASTERN INDIA. In: Endemic Bio-resources of India- Conservation and sustainable Development, (Ed.): N.I. Singh, Publisher - Bishen Singh & Mahendra Pal Singh, Dehra Dun, 179-183. [Varatharajan, R., Chochong, V.S. & Tarunkumar, O.]


Biology of Tumeric thrips, Panchaetothrips indicus Bagnall (Thripidae: Thysanoptera). Journal of Plantation Crops. (ICAR unit- Kasaragod, Kerala). 32: 57-58. [Varatharajan, R., Chochong, V.S., & Tarun, O.]

Thrips and Pollination Dynamics, In: Proc. National Conservation Workshop on Pollination Conservation, PDF-B, Global Environmental Facility, organized by GBPIHED, Kosi- Katarmal, Almora. 1-6. [Varatharajan, R.]

A new species of Thrips (Thysanoptera) of the genus Holurothrips Bagnall from Manipur, NE India. Entomon, 29(4):1-5. [Varatharajan, R. & Chochong, V.S.]

Faunistic diversity of thrips (Thysanoptera) inhabiting the oak leaf litters of plantation and natural habitats. In: Perspectives on Biosystematics and biodiversity. (Prof. T.C. Narendran Commemoratives Volume, Calicut University), 119-127. [Varatharajan, R., & Chochong V.S.]


The exotic species Neohydatothrips samayunkur (Kudo, 1995) ( Thripidae: Terebrantia) is now discovered from 6 states in India. Proc. Frontier Areas of Entomological Research, IARI, New Delhi, 666-667. [Bhatti, J.S., Vikas Kumar, Chochong, Kumud Tyagi & Varatharajan, R.]


Prey- predator relations with reference to chilli thrips and anthocorid bug, Orius sp. In: Recent Advances in Life Sciences, Manipur University. (Ed.): P.S. Yadava, 112-115. [Tarun Kumar, O., James Keisa, T. & Varatharajan, R.]

Influence of plant hosts and floral resources on the biology of Megalurothrips distalis (Karny) (Thysanoptera: Insect). In: Recent Advances in Life Sciences, Manipur University. (Ed.): P. S. Yadava, 109-111. [Chochong, V.S., Singh O.D. & Varatharajan, R.]


A new Species of gall forming thrips of the genus Crotonothrips Ananthakrishnan from Western Ghats. Hexapoda, 12(1-2): 41-46. [Varatharajan, R.& Chochong, V.S.]

A new Subgenus and species of gall thrips under the genus Mesothrips Zimmerman from Nagaland. Hexapoda, 12(1-2): 47-51. [Varatharajan, R.& Tarun Kumar, O.]

A new species of thrips of genus Leeuwenia Karny (Phlaeothripidae: Thysanoptera) from Manipur. Entomon, 26(2):169-172. [Varatharajan, R.& Sen, S.]

Bioecology and Management of thrips. In: IPM System in Agriculture Vol.7 (Ed.): Rajeev K. Upadhyay et al. Aditya Books Pvt.Ltd., New Delhi, 219-234. [Varatharajan, R. & James Keisa, T.]


Biodiversity of insect with special reference to thrips (Thysanoptera) of Manipur. Proceedings of Biodiversity & Conservation NEHU, Shillong, 77-80. [Varatharajan, R.]

Reproductive efficiency of Thrips hawaiiensis (Morgan) (Thysanoptera: Insecta) in relation to pollen and pollen free diets of few flower hosts.In: Advances in insect endocrinology and physiology. (Ed.): R.K. Bhola, Kalyani Publishers, New Delhi, 255-259. [Varatharajan, R., Singh, O. D.,& James Keisa, T.]


Faunistic composition and diversity of thrips (Thysanoptera: Insecta) in Manipur, North eastern India. Published by Manipur Association for Science and Society, 20pp. [Varatharajan, R.]


Spray schedule to control Scirtothrips dorsalis Hood (Thysanoptera: Insecta) on Capsicum annum L. Indian Association of Hill Farming, ICAR Publication, North East Hill Region, Shillong, 10: 42-45. [Varatharajan, R, James Keisa, T & Singh, O.D.]


Impact of water pan colour trap and application of neem pesticides on the abundance of Scirtothrips dorsalis Hood (Thysanoptera) on Capsicum annum L.(Solanaceae), In: IPM & Sustainable Agriculture - An entomological Approach. (Ed.): Goyal, 6: 105-107. [James Keisa, T, Singh, O.D, Amar Singh, S & Varatharajan, R.]

Bio-ecology of Oak thrips. Indian Silk, May, 1996: 28-30. [Chaoba Singh, K, James Keisa, T, Debaraj, Y, Varatharajan, R & Dwijamani Singh, O.]


Efficacy of two neem products in the field control of Scirtothrips dorsalis Hood (Thysanoptera: Insecta) on Capsicum annum L. Indian Journal of Plant Proctection, 2: 166-168. [James Keisa, T & Varatharajan, R.]

Species composition of thrips inhabiting Quercus serrata Thug. Indian Journal of Sericulture. 34 (2): 146. [Varatharajan, R, Singh, O.D, James Keisa, T & Noamani, M.K.R.]


Biology and feeding efficiency of Orius maxidentex Ghauri (Anthocoridae: Heteroptera) and Micromus timidus Hagen, (Hemerobiidae: Neuroptera) on the host Megalurothrips distalis (Karny) (Thripidae:Thysanoptera). Proceedings on Bio-control of insect pests, 67-70. [Singh, O.D, James Keisa, T & Varatharajan, R.]


On the flower thrips from Manipur, N.E. India – a taxomical approach. Bulletin of Entomology, 34(1 &2): 68-73. [Varatharajan, R, Singh, O.D. & Sen, S.]


Synthetic pyrethroids for control of flushworm and thrips infesting tea. Planters’ Chronicle, LXXXI (1): 23-27. [Muraleedharan, N & Varatharajan, R.]


Parasite - Host interaction in relation to the nematode Anguilluline aptini (Sharga)- a parasite on Microcephalothrips abdominalis (Crawford) and Frankliniella schultzei (Trybom). Current Science, 54(8): 396-398. [Varatharajan, R.]


Studies on soil pupation in some phytophagous thrips, Journal of Soil Biology & Ecology, 4(2): 116-123. [Varatharajan, R & Mohan Daniel, A.]

Studies on the anthophilous thrips (Thysanoptera: Insecta) of southern India. Ph.D. Thesis, Madras University. [Varatharajan, R.]


On the morphology, topography and the significance of stomata on floral nectaries of some Compositae. Phytomorphology, 32 (2/3): 265-269. [Gopinanthan, K & Varatharajan, R.]

Comparative efficiency of Thrips in relation to other foraging insects in the pollination of Cosmos bipinnatus Cav. (Compositae). Proceedings of the Indian National Science Academy, B. 48 (6): 735-739. [Varatharajan, R, Gopinathan, K. & Ananthakrishnan, T.N.]


Seasonal periodicity of thrips infesting some Compositae in relation to pollination Proceedings of the Indian National Science Academy, B 47 (6): 811-815. [Ananthakrishnan, T.N, Varatharajan, R & Gopinathan, K.]

Incidence of Microcephalothrips abdominalis (Crawford) (Thysanoptera: Insecta) in relation to the pollination biology of the weed Ageratum conyzoides Linn.(Compositae) Proceedings of the Indian National Science Academy,B.47 (4): 505-509. [Gopinanthan, K, Varatharajan, R & Ananthakrishnan, T.N.]

Pollination in Wedelia chinensis (Osbock) Merr. and Tridax procumbens L. (Compositae) by Thrips (Thysanoptera: Insecta), Proceedings of the Indian National Science Academy, B.47 (2): 159-165. [Ananthakrishnan, T.N, Varatharajan, R & Gopinathan, K.]