Records and descriptions of caddisflies from Natma Taung National Park and adjacent localities in the Chin Hills of Myanmar (Insecta, Trichoptera) Author Mey, Wolfram Museum fuer Naturkunde, Leibniz Institute of Evolution and Biodiversity Research, Invalidenstr. 43, D - 10115 Berlin, Germany wolfram.mey@gmx.de Author Malicky, Hans Sonnengasse 13, A - 3293 Lunz am See, Austria text Deutsche Entomologische Zeitschrift 2021 2021-03-26 68 1 139 164 http://dx.doi.org/10.3897/dez.68.61819 journal article http://dx.doi.org/10.3897/dez.68.61819 1860-1324-1-139 28566A431E6649C4BF8EF422762C3328 E1E84741BB015E3F8CAA951132B9D9CD Lepidostoma subpanaitos sp. nov. Fig. 8G-K Type material. Holotype ♂ (pinned), Myanmar, Chin, Chin Hills, Natma Taung National Park, 8 miles camp, area of Mt. Victoria, 2500 m a.s.l., 6-8.x.2002, at light, genitalia in glycerine vial (MfN). Paratypes (pinned): 1 ♂, same data as holotype (MfN). Etymology. The name refers to the close similarity to L. panaitos Malicky & Silalom, 2012. Diagnosis. This species is closely related to L. panaitos Malicky & Silalom, 2012, described from Chiangmai Province (Thailand) and L. parva (Mosely, 1941), described from northern Myanmar. L. subpanaitos sp. nov. differs by having the inferior appendages much more slender at bases, by absent baso-dorsal processes and with possessing parameres longer than phallus. Description. Length of forewing 8 mm. Head brown, second segment of male maxillary palpi with erected bundle of black, androconical scales, labial palpi with basal segment very short, terminal segment longer than second segment; scape short, curved and kneed subapically, covered with long bristles, flagellomeres bicoloured, yellow basally and brown apically; forewings brown, small androconial scales sparsely distributed at base and along veins, costal fold with hair comb, end of thyridial cell with naked spot; wing venation in Fig. 8K . Male genitalia (Fig. 8G-J ). Segment IX fused forming compact ring, dorso-mesal processes of segment X long and triangular, with acute tips, lateral processes absent, first article of inferior appendages nearly rectangular at base in lateral view, baso-dorsal process absent, ventroapical process finger-like, rounded at apices, dorsoapical process short, second article slightly shorter than ventroapical process, with apicomesal point; phallicata with basal portion slender and recurved basally, apical half nearly straight and broadened distally, parameres long, slender, symmetrical, longer than phallicata and slightly curved dorsad apically. Distribution. Myanmar, Chin Hills Biology. Mountainous species with flight period in autumn. Adults are attracted by light.