Revision of the Oriental species of Polypedilum Kieffer (Diptera: Chironomidae) with their phylogenetic relationship Author Mukherjee, Tuhar 0000-0002-9449-5985 Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, India & tuharmukherjeeofficial @ gmail. com; https: // orcid. org / 0000 - 0002 - 9449 - 5985 tuharmukherjeeofficial@gmail.com Author Mukherjee, Bindarika 0000-0002-9792-7931 Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, India & bindabdn @ gmail. com; https: // orcid. org / 0000 - 0002 - 9792 - 7931 bindabdn@gmail.com Author Hazra, Niladri 0000-0001-8149-9445 Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, India & hazra. niladri @ gmail. com; https: // orcid. org / 0000 - 0001 - 8149 - 9445 hazra.niladri@gmail.com text Zootaxa 2020 2020-07-27 4820 1 31 69 journal article 8973 10.11646/zootaxa.4820.1.3 2764e649-f308-4e3b-aaa0-9d29e81a06f2 1175-5326 4397253 E31607E8-A25D-44FA-AE5A-299BE6E2D0D6 Stictochironomus flagellatus (Chaudhuri, Guha and Dasgupta, 1981) Comb. n. Polypedilum ( P .) flagellatum Chaudhuri, Guha and Dasgupta, 1981: 122 ; Hazra, Niitsuma and Chaudhuri, 2016: 89 . Material examined . 3 males labelled ‘ Polypedilum flagellatum Chaudhuri, Guha and Dasgupta, 1981 , India , West Bengal , Duars , Birparah (26.70, 89.13), Coll. T . Dutta , 21.vi.1984 ’. Description. Wing . R 2+3 separated from R 1 ; R 4+5 and M bare; squamal setae 10–14. Hypopygium . Apical setae of inferior volsella 10–14; median setae of T IX 1–13. Remarks . After careful examination of the specimens we found that T VIII is not basally constricted; anterior and posterior tibial combs of fore and hind legs are not separate and inferior volsella is bent laterad. Based upon the mentioned characters we have come to the conclusion that the species belongs to the genus Stictochironomus . The superior volsella of the species is unique among the species of the genus.