Silvestrius Kaplin, subgen. nov.

Type species: Trigoniophthalmus graecanicus Wygodzinsky, 1941 (redescribed by Bach de Roca et al. 2011).

Diagnosis. Urocoxites II–IV with 2 + 2 exsertile vesicles. Spine-like setae present on the ventral surface of tarsus.

Description. Body length 9–13 mm. Hypodermal pigment on head and coxae or absent. Compound eyes black, widened. Paired ocelli black, submedian, subtriangular. Spine-like setae on the ventral surface of tarsus present. Urocoxites II–IV with 2 + 2 exsertile vesicles. Ovipositor shortened, not exceeding posterior angle of coxite IX or attaining middle of styli IX, with 20–43 divisions. Anterior and posterior gonapophyses with long setae.

Two described species (Table 1).