New Mycomya species from the Himalayas (Diptera, Mycetophilidae): 3. Subgenera Cesamya and Mycomyopsis Väisänen, Rauno Zootaxa 2013 3737 2 129 153 Vaisanen, 1984 Vaisanen 1984 [279,638,758,784] Insecta Mycetophilidae Mycomyopsis GBIF Animalia Diptera 8 137 Arthropoda genus     Mycomya aix sp. n. Figs. 5A–E   Material studied.  Holotype.♂. MYANMAR, N.E. Burma, Kambaiti, 2000 m, 4.VI. 1934, Malaise (in MZH).   Description.♂. Head.Palp brownish, other mouthparts and face yellowish, posterior parts of head brown. Antenna brownish, scape, pedicel and base of 1st flagellomere yellow. Length of 1st flagellomere about 4x, 2nd flagellomere 2.5x, its width. Thorax.Pronotum yellow, with 3 long setae. Scutum anteriorly yellow, posteriorly darker, with 3 brownish to brown longitudinal, posteriorly fused stripes. Anepisternum yellow. Preepisternum yellow, ventral half brownish. Scutellum brownish, with 4 long setae. Laterotergite brownish. Mediotergite brownish, bare. Wing.Length 4.4 mm. Wing hyaline. Sc ending in R1 near middle of small cell, Sc1 missing. Apical part of Sc bearing no small setae. Small cell about 1.5x as long as wide. Cu fork distal to M fork. M ratios: 0.93, 1.19. Cu ratios: 0.85, 1.41. Small setae: M petiole: 0; M1: 0; M2: 0; Cu petiole: 0; Cu1: 0; Cu2: 0. Halter apically brownish. Legs.Coxae and femora yellow, tibiae and tarsi brownish to brown. Coxa 2 without spur. Leg ratios: bt1:t1 =?, bt2:t2 = 0.75, bt3:t3 =?. Abdomen.Tergites 1–5 light brownish, 6–7 brown, sternites slightly paler. Hypopygium. Figs. 5A–F: yellowish. Tergal part with two pairs of combs. Outer tergal combs very wide, both consisting of about 15 strong cone-like, apically blunt spines; several similar cones also behind outer combs; inner combs both with about 7 spines ( Fig. 5C). Tergal lateral appendage very broad, slightly longer than its width, basally narrower, densely setose, with dark spur that is formed by strong, curved setae on medial side ( Fig. 5D; see also Fig. 5A, on both sides of outer combs). Sternal submedian filament missing ( Fig. 5B, lower medial parts of deeply bilobed sternal synsclerite without filament-like extensions). Gonostylus about 5xas long as wide, with 6 subapical teeth and long membranous lobe, extending slightly beyond apex of gonostylus ( Fig. 5E). Aedeagus comparatively long, slender, with relatively long lateral appendages on both sides almost reaching its apex ( Fig. 5F, mid-upper inner part, between gonostyli).   Discussion.The complex structure of the tergal combs consisting of strong dark cone-like spines ( Figs. 5A, 5C) and the dense setosity with the dark spur-like group of curved setae on the inner margin of the tergal lateral appendage ( Fig. 5D) of  M. aixare not known among the other species of the subgenus  Mycomyopsis. Also the short wide and densely setose tergal lateral appendage is diagnostic.   Etymology.The species name is a noun in apposition and refers to the genus of the mandarin duck,  AixF. Boie.