Atrichopogon (A.) haemorrhoidalis 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 : 49

Atrichopogon (A.) haemorrhoidalis Kieffer, 1921

( Figs. 1 C, 1I, 1P, 2C)

Atrichopogon haemorrhoidalis Kieffer, 1921: 560 (description of female - probably the holotype from Hokuto). Blech & Rohlfien 1987: 219 (holotype from Hokuto in SDEI).

Diagnosis. Female eyes pubescent, proximal flagellomeres cylindrical, paratergite with 1 seta, scutellum with 4 bristles.

Description. Female. Body dark. Eyes pubescent, narrowly fused along distance of 3–4 facets. Proximal flagellomeres cylindrical ( Fig. 1 I), AR 1.58. Proboscis short. Mandible with 20 small teeth. Third palpal segment with sensory pit at midlength ( Fig. 1 C), PR 1.93. Paratergite with 1 seta, scutellum with 4 bristles. Wing length 1.61 mm, CR 0.69; second radial cell 3.9 times longer than first; few macrotrichia at wing apex ( Fig. 2 C). TR (I) 2.7, TR (II) 3.2, TR (III) 2.5. Seminal capsule single, ovoid, with short neck, 0.100 mm long ( Fig. 1 P).

Male unknown.

Material examined. Holotype female labeled as follows: Hokuto, (Form.), H. Sauter, XII 1912, Holotypus, Atrichopogon haemorrhoidalis, Kieffer det. Complete specimen.

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).