Mycomya

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: 303

publication ID

http://dx.doi.org/10.11646/zootaxa.3666.3.1

publication LSID

lsid:zoobank.org:pub:5A2C3D51-FB3E-485F-A629-07080EB385D3

persistent identifier

http://treatment.plazi.org/id/C44B4E09-BF6A-FF82-A7BE-FF78FA72F899

treatment provided by

Plazi

scientific name

Mycomya
status

 

Key to the subgenera of Mycomya  and Himalayan species of subgenera Calomycomya  , Cymomya  , Neomycomya  and Pavomya

1. Coxa 2 with a spur (see Väisänen 1984: figs. 377, 436, 445, 597, 825).......................................... 2

- Coxa 2 without a spur............................................................................... 5

2. (1) Abdominal tergites yellow with dark posterior margins; abdominal tergite 8 bare; tergal part of hypopygium with a fork-like median structure and a specialized inner structure including a pair of strong spurs ( Figs. 2View FIGURE 2 A, and 1 A, 2 C, 3 A; Väisänen 1984: e.g. figs. 833, 842, 851); ocellar prominence usually distinctly darker than posterior parts of head........................................................................................... (subgenus Calomycomya  ) 3

- Abdominal tergites entirely dark or light, or dark with paler posterior margins; abdominal tergite 8 with setae; tergal part of hypopygium without such structures; ocellar prominence not distinctly darker than posterior parts of head................................................................................ subgenus Mycomya  (see Väisänen 1996)

3. (2) Tergal fork of hypopygium basally wide, U-shaped, apically 1.2 x as wide as its length ( Fig. 2View FIGURE 2 A)......... M. ratufa  sp. n.

- Tergal fork of hypopygium basally narrow, V-shaped, apically narrower than its length ( Figs. 1View FIGURE 1 A, 3 A)............... 4

4. (3) Both branches of gonostylus relatively long and slender ( Fig. 3View FIGURE 3 D); aedeagus with two short bilobed spurs ( Fig. 3View FIGURE 3 E).............................................................................................. M. wah  sp. n.

- Slender branch of gonostylus much shorter than the broader one ( Fig. 1View FIGURE 1 C); aedeagus with two long spurs ( Fig. 1View FIGURE 1 D).......................................................................................... M. marmota  sp. n.

5. (1) Mediotergites with small setae or bare; coxa 1 with or without a dense patch of short, seldom longer, setae on anteromedial surface (Väisänen 1984: figs. 104, 435); tergal part of hypopygium usually with 2 groups of dark cones, often with lateral sabre-like spines (e.g. Väisänen 1984: figs. 76, 119, 254); sternal synsclerite not medially deeply emarginated, with setose lobe-like submedian appendages (e.g. Väisänen 1984: figs. 133–136)...................... subgenus Mycomya  (p.p.)

- Mediotergite bare; coxa 1 without specialized setae; tergal part of hypopygium without such cones or spines; sternal synsclerite deeply emarginated or divided into two parts, without such appendages.................................... 6

6. (5) Abdominal tergite 8 bare ( Fig. 10View FIGURE 10 C), sternite 8 with setae ( Fig. 10View FIGURE 10 D).............................................................................................. ..subgenus Pavomya subg. n.: Mycomya kambaitiensis  sp. n.

- Abdominal tergite 8 with long apical setae (Väisänen 1984: figs. 896, 919, 974), sternite 8 usually bare (with setae only in subgenus Myacymo)................................................................................. 7

7. (6) Sternal synsclerite with long wide lateral appendages (e.g. Fig. 5View FIGURE 5 C); tergal part of male hypopygium without lateral appendages............................................................................................. 8

- Sternal synsclerite without large lateral appendages; tergal part of hypopygium with lateral appendages (e.g. Väisänen 1984: figs. 964 –965, 1059–1060, 1066)..................................................................... 13

8. (7) Tergal part of hypopygium without a comb, with groups of strong submedian and lateral spines (e.g. Väisänen 1984: figs. 914, 917, 926, 928, 937 – 939, 943); sternal lateral appendages with strong spines (e.g. Väisänen 1984: figs. 916, 921, 927, 934, 942).................................................. subgenus Coheromyia (Holarctic and Neotropical) 

- Tergal part of hypopygium with an apicomedial comb of setae, without groups of strong spines (Väisänen 1984: figs. 911– 913); sternal lateral appendages without strong spines..................................................... 9

9. (8) Setae of tergal comb strong and very long, almost as long as width of hypopygium (Väisänen 1984: figs. 911–913)................................................................................subgenus Tlingitmyia (Nearctic)

- Setae of tergal comb short, spine-like (e.g. Väisänen 1984: fig. 892, 901).................... (subgenus Cymomya  ) 10

10. (9) Sternal lateral appendage long, narrow and its apical part curved ventrally ( Fig. 5View FIGURE 5 C).................... M. cuon  sp. n.

- Sternal lateral appendage comparatively short, wide and straight, apically rounded ( Figs. 4View FIGURE 4 B, 6 B, 7 B)............... 11

11. (10) Sternal submedian filament distinctly (about 1.2 x) longer than sternal lateral appendage ( Fig. 6View FIGURE 6 A)....... M. paguma  sp. n.

- Sternal submedian filament not longer than sternal lateral appendage ( Figs. 4View FIGURE 4 A –B, 7 A –B)....................... 12

12. (11) Sternal lateral appendage widest at midlength ( Fig. 4View FIGURE 4 B); wing length 3.2–4.1 mm .................... M. aonyx  sp. n.

- Sternal lateral appendage widest basally ( Fig. 7View FIGURE 7 B); wing length 4.6 mm .......................... M. panthera  sp. n.

13. (7) Tergal part of hypopygium without tergal combs......................................................... 14

- Apical part of tergal part of hypopygium with at least one dense tergal comb of short spines (e.g. Väisänen 1984: figs. 1042, 1045, 1064)...................................................................................... 15

14. (13) Tergal part of hypopygium with relatively small submedian lobes, lateral appendages long, well-developed, with specialized setae (Väisänen 1984: figs. 946, 948, 949, 951); abdominal sternite 8 with setae......... subgenus Myacymo (Nearctic)

- Tergal part of hypopygium with large submedian lobes, lateral appendages small ( Figs. 8View FIGURE 8 A, 8 C); abdominal sternite 8 bare............................................................. subgenus Neomycomya  : M. fimbriata  (Meigen)

15. (13) Tergal part of hypopygium with two dense submedial, apical tergal combs (e.g. Väisänen 1984: figs. 985, 989, 1042, 1045)................................................................................ subgenus Mycomyopsis 

- Tergal part of hypopygium with a dense wide apical tergal comb (e.g. Väisänen 1984: figs. 1064, 1071, 1075).............................................................................................. subgenus Lycomya