Smittia nudipennis (Goetghebuer, 1913)

Yamamoto, Nao & Yamamoto, Masaru, 2018, Taxonomic information on some Japanese Chironomidae (Diptera) described by Dr. M. Sasa (†), Zootaxa 4514 (4), pp. 516-528 : 518

Smittia nudipennis (Goetghebuer, 1913)

( Fig. 6 )

Smittia nudipennis (Goetghebuer, 1913: 166) (Camptocladius) .

Bryophaenocladius togatenuis Sasa et Okazawa, 1992: 136 . syn. n.

Specimen examined: Japan: Toyama Pref., Toga Village , holotype ♂ of Bryophaenocladius togatenuis , 31. v. 1990, T. Okazawa & M. Sasa [specimen No. 180:61 (NSMT-I-Dip 4702)] .

Pubescent eyes, a terminal seta on last antennal flagellomere, no acrostichal setae, a moderately extended costa and a strongly sinuous Cu 2 are observed in the holotype of Bryophaenocladius togatenuis . These features indicate that the species belongs to the genus Smittia Holmgren. Furthermore , the hypopygial features are quite consistent with those of Smittia nudipennis .

Figures

FIGURES 6–9. Two chironomid species, male imagines. 6, Smittia nudipennis (Goetghebuer) (holotype of Bryophaenocladius togatenuis Sasa et Okazawa), hypopygium; 7–9, Chironomus circumdatus Kieffer (holotype of Chironomus daitoefeus Sasa et Suzuki), mesonotum, dorsal aspect (7), hypopygium (8), superior volsella (9).