Mycomya marmota , Väisänen, Rauno, 2013

Väisänen, Rauno, 2013, New Mycomya species from the Himalayas (Diptera, Mycetophilidae): 2. Subgenera Calomycomya, Cymomya, Neomycomya and Pavomya subg. n., Zootaxa 3666 (3), pp. 301-318: 304

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Mycomya marmota

sp. n.

Mycomya marmota  sp. n.

Figs. 1View FIGURE 1 A –D

Material examined. Holotype. 3. E. NEPAL, Basantapur (2300 m) 27 °07'N, 87 ° 24 'E May 1–5. 1972 Malaise trap Kyushu Univ. Col. (in KUC). Paratypes (3 only). Gupa Pokali, 27 ° 17 'N, 87 ° 30 'E, 2900 m—Chouki, 27 ° 12 'N, 87 ° 28 'E, 2700 m, 16.VII. 1972, J. Emoto, 1 3 (in KUC); Dobang Kharka, 83 ° 24 'E, 28 ° 36 'N, 15.X. 1971, A. Nakanishi, 1 Ƥ (in KUC); same locality, 20.X. 1971, 1 3 (in KUC); same locality, Malaise trap, 25–26. X. 1971, 1 3 (in KUC).

Description. 3. Head. Palp, other mouthparts and face yellow, posterior parts of head brownish, ocellar prominence brown. Antenna brownish, scape, pedicel and base of 1 st flagellomere yellow. Length of 1 st flagellomere about 2.5 x, 2 nd flagellomere 1.5 x, its width. Thorax. Pronotum yellow, with 3–4 long setae. Scutum yellowish to light brownish with indistinct longitudinal stripes. Anepisternum and preepisternum yellow. Scutellum light brownish, with 4 long setae. Laterotergite light brownish. Mediotergite light brownish, bare. Wing. Length 3.8–5.2 mm. Wing hyaline, small cell and wing apex very weakly infuscated. Sc ending in C distinctly distad of middle of small cell, Sc 2 ending in R 1 distad of middle of small cell. Apical part of Sc bearing 10–16 small setae. Small cell almost 2 x as long as wide. Cu fork below M fork. M ratios: 0.36–0.38, 0.44–0.50. Cu ratios: 0.70– 0.88, 1.04–1.53. Small setae: M petiole: 0; M 1: +; M 2: +; Cu petiole: +; Cu 1: +; Cu 2: +. Halter pale yellowish, apex brownish. Legs. Coxae yellow, coxa 3 sometimes with brownish spot on outer side, femora yellow, tibiae and tarsi brownish. Coxa 1 with some thin setae along anteromedial surface. Coxa 2 with short curved spur; apex of spur with 1 tooth. Leg ratios: bt 1:t 1 = 1.00– 1.10, bt 2:t 2 = 0.72–0.77, bt 3:t 3 = 0.59–0.62. Abdomen. Tergites 1–5 yellow to yellowish, with brown dorsal line and posterior margins, 6–7 brown. Sternites 1–5 yellow, 6–7 brownish. Hypopygium. Figs. 1View FIGURE 1 A –D, yellowish. Tergal fork very narrow, apically narrower than its length, V-shaped, with short apical setae about as long as the diameter of each branch of tergal fork, and relatively wide thin lateral lobes almost as long as tergal fork ( Fig. 1View FIGURE 1 A). Sternal lateral appendages with relatively short flattened setae ( Fig. 1View FIGURE 1 B). Gonostylus with two branches, one wide, apically curved branch with indistinct subapical tooth and another short, slender and curved ( Fig. 1View FIGURE 1 C). Aedeagus with two apically pointed, long spurs about 4 x as long as narrowest width of aedeagus in lateral view ( Fig. 1View FIGURE 1 D).

Discussion. The diagnostic characters of M. marmota  include the very narrow, V-shaped tergal fork (about 1.3 x as long as its apical width; Fig. 1View FIGURE 1 A), and the gonostylus with the curved, slender branch short (only about 0.5 x as long as the whole gonostylus), much shorter than the thicker branch ( Fig. 1View FIGURE 1 C).

Etymology. The species name marmota  is a noun in apposition and refers to the Himalayan marmot.