Species group oligolaccius

Diagnosis. Both sexes. Setae f2 absent, prodorsal shield entire, prodorsal and hysteronotal shields with or without lacunae. Male. Adanal suckers toothed, adanal shields represented by 2 pairs of sclerites, adanal apodemes absent, epimerites I fused into a narrow U or V, terminal lamellae short tongue-shaped, aedeagus not extending beyond adanal suckers. Female. Primary spermaduct short, with or without proximal enlargement, head of spermatheca small U-shaped.

Remark. The group consists of 5 species, including 2 species described herein.