The genus Anarsia in Cambodia and the Northern Vietnam (Lepidoptera, Gelechiidae), with descriptions of ten new species and a catalogue of the genus in the Central-East Asia Author Bae, Yang-Seop Author Shin, Young-Min Author Na, Sol-Moon Author Park, Kyu-Tek text Zootaxa 2016 4061 3 227 252 journal article 51218 10.11646/zootaxa.4061.3.2 713cbd24-be93-4646-922d-76154ec950ad 1175-5326 266968 06F2F7C6-24EC-48BB-8167-325D4D1C1A3C Key to the species of Anarsia Zeller in Central-East Asia 1. Forewing with a large, blackish triangular or trapezoidal costal patch near middle of costa, transversally reaching about 1/2 or beyond distance across wing........................................................................... 2 - Forewing with a small, crescent, blackish costal patch near middle of costa, transversally reaching less than 1/4 towards dorsum or without distinct costal patch...................................................................... 7 2. Forewing rather broad, semioval with a large trapezoidal costal patch and a long expansible hair pencil on underside of forewing................................................................................ A. phortica Meyrick - Forewing moderate or elongate, with a triangular or subtriangular costal patch and without such hair pencil on underside of forewing........................................................................................... 3 3. Forewing ground color orange white; costal patch large, triangular, occupying 1/3 of costa and transversally reaching over 3/4 towards dorsum...................................................................... A. trichornis Meyrick - Forewing ground color grayish white, speckled with fuscous scales; costal patch subtriangular, occupying less than 1/4 of costa and transversally reaching 2/3 towards dorsum............................................................. 4 4. Forewing with a long, expansible hair pencil on underside of forewing near base..... A. paraisogona Park & Ponomarenko - Forewing without such a hair pencil on underside of forewing.................................................. 5 5. Wingspan less than 9.0 mm; costal patch on forewing transversally reaching about 1/2 towards dorsum; tegumen of male genitalia with a large, long lobe along lateral margin....................................... A. deuterodes Park , sp. nov. - Wingspan more than 10.0 mm; costal patch on forewing transversally reaching about 3/5 towards dorsum; tegumen of male genitalia without such a lobe along lateral margin............................................................ 6 6. Male genitalia: both valvae with rounded distal margin, with short-stalked palmately modified scales; process on left valva strongly angled near basal 1/4............................................................... A. incerta Ueda - Male genitalia: both valvae broad in basal 3/5 and abruptly tapered beyond; with long-stalked palmately modified scales; process on left valva strongly curved beyond middle............................................. A. isogona Meyrick 7. Forewing with a long expansible hair pencil on underside of forewing at near base................................. 8 - Forewing without such a hair pencil on underside of forewing................................................. 14 8. Wingspan more than 15.0 mm; forewing with a thick, blackish streak in cell................. A. houhunlii Park , sp. nov. - Wingspan less than 11.0 mm; forewing without such a streak in cell............................................ 9 9. Hindwing with anterior expansion gradually oblique near middle on costa and with a row of short setae along Sc vein on under side; male genitalia with a basal, sclerotized, long thread-like process on dorsal margin of left valva, longer than 1.5 times of the valva.......................................................................................... 10 - Hindwing with broad anterior expansion extended to middle or beyond, then abruptly truncated on costa and without such a row of short setae on Sc vein; male genitalia without such thread-like process on dorsal margin of left valva........... 11 10. Male genitalia with a long, digitate process beyond middle on dorsal margin of left valva............. A. campestra Park , sp. nov. - Male genitalia without such digitate process on ventral margin of left valva................ A. similicampa Park , sp. nov. 11. Forewing with a distinct, blackish subbasal fascia extended from central line of discal cell to inner margin A. acerata Meyrick - Forewing without such subbasal fascia.................................................................. 11 12. Wingspan more than 12.0 mm; head and thorax orange white; hindwing with anterior expansion extended to beyond 2/3................................................................................... A. gryphodes Park , sp. nov. - Wingspan less than 11.0 mm; head and thorax grayish white, speckled with dark brown scales; hindwing with anterior expan- sion extended to middle............................................................................... 13 13. Left valva semiovate, broad basally, and gradually narrowed towards apex................... A. diversiola Park , sp. nov. - Left valva more or less slender, broad at base, and narrow in middle part.................... A. porthmista Park , sp. nov. 14. Third segment of labial palpus in male shortly developed, visible; second segment with an additional, slightly upturned scale tuft on inner side.................................................................. A. kepensis Park , sp. nov. - Third segment of labial palpus in male atrophied, invisible; second segment triangular or rectangular, without such additional scale tuft on inner side................................................................................ 15 15. Head blackish dorsally; second segment of labial palpus in male quadrate, shortly upturned, with rounded ventral margin.................................................................................. A. melanodes Park , sp. nov. - Head orange white or pale brownish gray; second segment of labial palpus triangular or subtriangular, with nearly straight ven- tral margin......................................................................................... 16 16. Second segment of labial palpus in male greatly elongated anteriorly with long scaletufts, longer than 1.5 times the width of head; palmate scales on valva with short stalks................................................... A. choana Park - Second segment of labial palpus in male triangular or subtriangular, with normal scale tuft, usually shorter than the width of head; palmate scales on valva with long stalks............................................................. 17 17. Left valva of male genitalia without a hook-shaped process basally............................... A. patulella Walker - Left valva of male genitalia with a hook-shaped process basally............................................... 18 18. Forewing with a distinct blackish streak in discal cell; male genitalia with a hook-shaped, basal process of left valva shorter than 1/3 the length of valva............................................................. A. didymopa Meyrick - Forewing with blackish streak in discal cell absent; male genitalia with a hook-shaped, basal process of left valva nearly as long as 1/2 the length of valva...................................................... A. pusillidia Park , sp. nov.