Stenchaetothrips biformis (Bagnall)
Nomenclature
Bagnallia biformis Bagnall, 1913: 237.
Bagnallia adusta Bagnall, 1913: 238.
Bagnallia melanurus Bagnall, 1913: 238.
Thrips (Bagnallia) oryzae Williams, 1916: 353.
Thrips holorphnus Karny, 1925: 15.
Plesiothrips Girault, 1929: 1.
Thrips dobrogensis Knechtel, 1964: 479.
Chloethrips blandus zur Strassen, 1975: 78.
Diagnosis
Female macroptera: Body brown; forewing pale brown, clavus dark brown. Antennae 7 segmented, III–IV each with a forked sense cone. Head with ocellar pair III arising a little anterior to hind ocelli; postocular setae pair II as long as distance between hind ocelli. Pronotum having 2–3 pairs of posteromarginal setae. Metanotum with longitudinal striations, converging posteromedially; median setae arise behind anterior margin. Forewing first vein with 2–4 distal setae. Abdominal tergite VIII with a complete posteromarginal comb of irregular microtrichia. Abdominal sternites without discal setae, irregular, small dentate microtrichia on posterior margins.
Male macroptera: Similar to female but smaller; small, laterally pointing teeth on posterior margin of abdominal tergites II–VII, VIII with irregularly arranged small, laterally pointing teeth on posterior margin; abdominal sternites often bearing numerous discal microtrichia, irregular dentate microtrichia on posterior margin, III–VII with transverse pore glands.
specimens collected on
Cynodon dactylon (Poaceae), Grass (Poaceae), Oryza sativa, Phragmites karka (Poaceae) (Bhatti, 1982; Johnson & Varatharajan, 2018; Rachana, 2020)
Distribution
Arunachal Pradesh, Delhi, Chandigarh, Himachal Pradesh, Karnataka, Odisha, Madhya Pradesh, Manipur, Meghalaya, Mizoram, Sikkim, Tamil Nadu, Uttar Pradesh, West Bengal (Bhatti, 1990; Johnson & Varatharajan, 2018)
References
Bagnall, R. S., 1913, Further notes on new and rare British Thysanoptera (Terebrantia) with descriptions of new species. J. Econ. Biol., 8: 231–240.
Bhatti, J. S., 1982, Revision of the Indian species of Stenchaetothrips Bagnall. Orient. Insects, 16: 385–417.
Bhatti, J. S., 1990, Catalogue of insects of the Order Terebrantia from the Indian Subregion. Zoology (J. Pure Appl. Zool.)., 2: 205–352.
Girault, A. A., 1929, New pests from Australia VI. Privately published, Brisbane,
pp. 1–4.
Johnson, T. and Varatharajan, R., 2018, Thrips (Insecta: Thysanoptera) fauna from the Dampa Tiger Reserve, Mizoram, India. Halteres., 9: 143–150.
Karny, H., 1925, Die an Tabak auf Java und Sumatra angetroffenen Blasenfüsser. Bulletin van het deli Proefstation te Medan., 23: 1–55.
Knechtel, 1964, O noua specie dobrogeana din genul Thrips (Thysanoptera). Studii si Cercetari de Biologie, Seria Zoologie., 16: 479–480.
Rachana, R. R., 2020, Systematic studies on Terebrantian thrips of Karnataka, India. Ph.D. Thesis, University of Agricultural Sciences, Dharwad.
Williams, C. B., 1916, Thrips oryzae sp.nov., injurious to rice in India. Bull. Entomol. Res., 6: 353–355.
zur Strassen, R., 1975, Thysanopterologische Notizen (3) (Insecta: Thysanoptera). Senckenberg. Biol., 56: 75–88.
