Chaetocladius togatenellus ( Sasa et Okazawa, 1992 ) Yamamoto & Yamamoto, 2018

Yamamoto, Nao & Yamamoto, Masaru, 2018, Taxonomic information on some Japanese Chironomidae (Diptera) described by Dr. M. Sasa (†), Zootaxa 4514 (4), pp. 516-528 : 517

Chaetocladius togatenellus ( Sasa et Okazawa, 1992) comb. n.

Bryophaenocladius togatenellus Sasa et Okazawa, 1992: 135 .

Specimen examined: Japan: Toyama Pref., Toga-Mura, Momose , holotype ♂ of Bryophaenocladius togatenellus , 31. v. 1990, T. Okazawa & M. Sasa [specimen No. 182:73 (NSMT-I-Dip 4716)] .

The species was treated as a member of Bryophaenocladius by Yamamoto (2004) based on the original description. However, it becomes clear that the holotype of the species bears such features as follows: tarsomeres 1–2 of mid and hind legs with pseudospurs, sensilla chaetica present on tarsomere 1 of hind leg; lateral spines of mid and hind tibiae diverge from shaft of spur; small virga preset, anal point hyaline and bare. These features indicate that the species should be transferred to the genus Chaetocladius Kieffer. Kobayashi (2012) reported that B. togatenellus and Paratrissocladius sudagaicedeus each is a member of Chaetocladius by citing from the abstract of the meeting for the study of Japanese chironomid workers ( Yamamoto & Yamamoto, 2007) which was not published formally.