Glyptotendipes (Caulochironomus) biwasecundus Sasa et Kawai, 1987

Glyptotendipes biwasecundus Sasa et Kawai, 1987b: 14 .

Chironomus famiabeus Sasa, 1996: 47 . syn. n.

Chironomus ginzanabeus Sasa et Suzuki, 2001a: 9 . syn. n.

Chironomus inabeceus Sasa, Kitami et Suzuki, 2001; 3. syn. n.

Specimens examined: Japan: Toyama Pref., Family Park, holotype ♂ of Chironomus famiabeus, 23. vi. 1993, M. Sasa [specimen No. 253:01 (NSMT-I-Dip-4931)] ; Hokkaido, Mt. Ginzan, holotype ♂ of Chironomus ginzanabeus, 1. ix. 2000, H. Suzuki [specimen No. 403:013 (NSMT-I-Dip 5 383)] ; Fukushima Pref., Lake Inawashiro, holotype ♂ of Chironomus inabeceus, 17. viii. 2000, K. Kitami [specimen No. 401:90 (NSNT-I-Dip-5377)] .

In their original description of Chironomus inabeceus, Sasa et al. (2001) pointed out that the wing is entirely clothed in macrotrichia. However, we could not recognize this feature in the holotype. The shape of the anal point, superior and inferior volsellae support that C. famiabeus, C. ginzanabeus and C. inaabeus are junior synonyms of Glyptotendipes biwasecundus .