The heterocerus species-group

Diagnosis. (1) Abdominal tergite III with postspiracular setae; (2) metanotum with 3–4 long, 1 medium and 1 very short posterolateral setae on each side; and (3) male genitalia as in Fig. 4, with a thickened central prolongation of basal apodeme (see Clay 1966b: fig. 14).

Here, we record one species of the heterocerus species-group from Japan: Strigiphilus heterocerus (Grube, 1851), previously reported by Uchida (1948) as “ Strigiphilus fukuro n. sp. ”