Atrichopogon (A.) pruinosus Kieffer, 1921

Szadziewski, Ryszard & Dominiak, Patrycja, 2009, Biting midges of the genus Atrichopogon Kieffer (Diptera: Ceratopogonidae) described by Kieffer from Taiwan, Zootaxa 2239, pp. 45-54 : 50-51

Atrichopogon (A.) pruinosus Kieffer, 1921

( Figs. 1 K, 2H)

Atrichopogon pruinosus Kieffer, 1921: 560 (description of female - probably holotype from Taihoku). Blech & Rohlfien 1987: 222 (in SDEI: holotype female, Taihoku, 1912).

Diagnosis. Eyes hairy, proximal flagellomeres spherical, paratergite with 1 seta, scutellum with 4 bristles.

Description. Female. Body small and robust, dark. Eyes pubescent, narrowly fused along the distance of 4 ommatidia. Mandible broad, armed with about 30 teeth. Proximal flagellomeres spherical, AR 2.00 ( Fig. 1 K). Palpus 5-segmented. Third palpal segment slender, PR 2.60. Wing length 1.12 mm, CR 0.72. Wing bearing small number of macrotrichia in apical distal one-third ( Fig. 2 H). Scutellum with 4 bristles, halter uniformly pale, paratergite with 1 seta. Abdomen not preserved.

Male unknown.

Material examined. Holotype female, labeled as follows: Taihoku, Formosa, H. Sauter, 1912, 7.XI, Holotypus, Typus, Atrichopogon pruinosus K., Kieffer det., SDEI. Abdomen and one flagellum missing.

Discussion. Atrichopogon pruinosus is known only from the type locality. The single preserved female is missing its abdomen; because of that, its subgeneric position is not quite certain. However, we believe that the other preserved characters will correctly indicate it to be a member of the subgenus Atrichopogon s. str.

Figures

FIGURE 1. Atrichopogon described by Kieffer from Taiwan. Female palps (A – F), female proximal flagellomeres (G – M), seminal capsules (N – U), male genitalia (V, W). A. argus (A, G, N), A. flaviceps (B, H, O), A. haemorrhoidalis (C, I, P), A. insularis (D, J, R, V), A. minimus (E, S), A. myrmedon (F, M, U), A. pruinosus (K), A. ruber (L, T, W).

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).