Diostracus Loew, 1861a: 43; Takagi 1968: 35 (diagnosis), 51 (redescription of type species). — Grichanov et al. 2011b: 22 (diagnosis).
Asphyrotarsus Oldenberg, 1916: 193. — Negrobov 1978: 406 (synonym of Diostracus Loew, 1861). — Type species: Liancalus leucostomus Loew, 1861 (original designation).
At present the nominotypical subgenus differs from other subgenera in having a dorsally setose antennal scape. It is worth noting that many Asian Diostracus species were described with a glabrous scape (e.g., Saigusa 1984, 1995; Saigusa et al. 1997; Yang et al. 2011).
Diostracus prasinus Loew, 1861 (by monotypy).