Subgenus Sphyrotarsus Mik, 1874, stat. nov.
Sphyrotarsus Mik, 1874: 342 . — Grichanov et al. 2011b: 25 (diagnosis).
Diagnosis
As presently defined, the subgenus differs from other subgenera in the presence of 6 (vs. 2–4) long bristles on the scutellum in addition to the glabrous antennal scape (Negrobov 1973; Grichanov et al. 2011b). These characters are rather variable in Asian Diostracus species (e.g., Saigusa 1984, 1995; Saigusa et al. 1997; Yang et al. 2011). Parent (1938) also used variable male secondary sexual characters to distinguish Sphyrotarsus from Asphyrotarsus (= Diostracus).
Type species
Sphyrotarsus argyrostomus Mik, 1874 (by monotypy).