Atrichopogon

Szadziewski, Ryszard & Dominiak, Patrycja, 2009, Biting midges of the genus Atrichopogon Kieffer (Diptera: Ceratopogonidae) described by Kieffer from Taiwan, Zootaxa 2239, pp. 45-54 : 53-54

Key to females of Atrichopogon described from Taiwan

The Atrichopogon fauna of Taiwan, in addition to the species redescribed and interpreted above, includes A. monticolus Tokunaga, 1940 a (p. 271, Taihoku, female), A. kagiensis Tokunaga, 1940 a (p. 270, Taihoku, male) and A. flavidus Kieffer, 1921 . The latter species was briefly described by Kieffer from Philippines ( Kieffer 1921) and subsequently recorded from Taihoku by Tokunaga (1940b). Actually it is a doubtful species which has no diagnostic characters and its report from Taiwan is doubtful. Types in SDEI are not preserved ( Blech & Rohlfien, 1987). In the key to females presented below are not included: Atrichopogon kagiensis (known from male), A. rufescens Kieffer (nomen dubium) and A. flavidus (doubtful record, type locality - Philippines).

1. Genital segments armed with spines ( Fig. 3 )....................................... subg. Psilokempia . A. myrmedon Kieffer, 1922

-. Genital segments without special armature ................................................................... ..subg. Atrichopogon (s. str.) 2

2. Eyes hairy ..................................................................................................................................................................... 3

-. Eyes bare .......................................................................................................................................................................5

3. Scutellum with 7 bristles ........................................................................................................ A. minimus Kieffer, 1916

-. Scutellum with 4 bristles .............................................................................................................................................. 4

4. Proximal flagellomeres spherical .......................................................................................... A. pruinosus Kieffer, 1921

-. Proximal flagellomeres cylindrical ......................... A. haemorrhoidalis Kieffer, 1921 , A. monticolus Tokunaga, 1940

5. Paratergite with 3–4 setae ...................................................................................................... A. insularis Kieffer, 1921

-. Paratergite with 1 seta.................................................................................................................................................. 6

6. Scutellum with 4 bristles ................................................................................................................. A. argus Kieffer, 1916

-. Scutellum with 6 bristles .............................................................................................................................................. 7

7. Proximal flagellomeres cylindrical ( Fig. 2 H)........................................................................... A. flaviceps Kieffer, 1912

-. Proximal flagellomeres spherical ( Fig. 2 L) ................................................................................ A. ruber Kieffer, 1916

Figures

FIGURE 2. Atrichopogon described by Kieffer from Taiwan. Female wings (A – D, F – I), male wings (E, J). A. argus (A), A. flaviceps (B), A. haemorrhoidalis (C), A. insularis (D, E), A. minimus (F), A. myrmedon (G), A. pruinosus (H), A. ruber (I, J).

FIGURE 3. Atrichopogon myrmedon. Tip of female abdomen, ventral aspect.