Terebrantian thrips of India

Hydatothrips ramaswamiahi Priesner, 1926

Hydatothrips ramaswamiahi Karny, 1926

Sericothrips graminis Ananthakrishnan, 1956

Hydatothrips ramaswamiahi diversus Bhatti, 1973

Female macroptera: Body greyish brown. Forewing brown with a sub basal pale area. Legs brown. Head with dense transverse striae with wrinkles among them; occipital apodeme touching posterior eye margin. Ocellar setae III situated in front of posterior ocelli, inside ocellar triangle. Antennae 8 segmented, III and IV with a forked sensorium. Pronotum outside of blotch reticulate; distance between two anteromarginal median setae more than or nearly equal to length of setae. Pronotal blotch covered with dense transverse striations, anterior angles extended forward to form protruding ends, 3 pairs of anteromarginal setae, 1 seta each on lateral margin, 2 pairs of posteromarginal setae. Metanotum with median irregular reticles, with wrinkles. Forewing with complete setae row on first vein, second vein without setae. Abdominal tergite I with microtrichial rows laterally, II–VII with dense microtrichial rows on areas lateral to submedian setae, II–VI with posteromarginal comb, minute medially; VII and VIII with complete posteromarginal comb. Abdominal sternites without discal setae.

Male macroptera: Similar to female but smaller. Abdominal sternites V–VII each with a transverse pore gland.

Alhagi pseudalhagi (Camel-thorn) (Fabaceae), Azadirachta indica (Meliaceae); Grass, Indigofera tinctoria (Fabaceae), Ricinus communis (Euphorbiaceae), Cosmos caudatus (Asteraceae) (Bhatti, 1973; Rachana, 2020)

Delhi, Haryana, Karnataka, Kerala, Madhya Pradesh, Rajasthan, Tamil Nadu (Bhatti, 1973; Rachana, 2020)

Ananthakrishnan, T. N., 1956, Studies on some Indian Thysanoptera III. Zool. Anz., 157: 130–139.

Bhatti, J. S., 1973, A preliminary revision of Sericothrips Haliday, sensu lat., and related genera, with a revised concept of the tribe Sericothripini. Orient. Insects, 7: 403–449.

Karny, H., 1926, Studies on Indian Thysanoptera. Memoirs of the Department of Agriculture in India Entomology Series, 9: 187–239.

Priesner, H., 1926, Die Jugendstadien der malayischen Thysanopteren. Treubia, 8:
1–264.

Rachana, R. R., 2020, Systematic studies on Terebrantian thrips of Karnataka, India. Ph.D. Thesis, University of Agricultural Sciences, Dharwad.