Cryptochironomus tamaichimori Sasa in Sasa & Kawai, 1987

Yan, Chuncai, Liu, Ting, Cao, Wei, Zhao, Guangjun & Liu, Wenbin, 2018, A review of the Japanese Cryptochironomus Kieffer, 1918 (Diptera, Chironomidae), ZooKeys 771, pp. 139-155 : 145

Cryptochironomus tamaichimori Sasa in Sasa & Kawai, 1987

Cryptochironomus sp. “hentona” Sasa & Ichimori, 1983: 103.

Cryptochironomus tamaichimori Sasa in Sasa & Kawai 1987: 61; Sasa 1993: 55; Makarchenko et al. 2005: 409.

Diagnostic characters.

Frontal tubercles and the posterior margin of tergite IX are highly variable in this species. The main distinguishing features are as follows: superior volsella bulbous to globular, both sides of the inferior volsella stretching upward at base, formed into flank-shaped, free microtrichia, bearing two long apical setae at apex. The junction of gonostylus and gonocoxite concaved obviously, gonostylus abruptly narrowed near apex and apically pointed, bearing one seta at apex.

Distribution.

China (Hebei, Zhejiang, Fujian, Hubei, Guangdong, Hainan, Sichuan); Japan; Russian Far East.