geniculata group
(Figs. 4, 5, 6; table 3)
Genevcius et al. 2012, 17.
Diagnosis. The group is defined by the strong concavity of the juga in front of the eyes, the antennal segment III longer than the II and the oblique position of the flaps of the pygophore. The internal male genitalia (Fig. 6 b) are very conserved among the species of the group, and also invariable in relation to other groups of species within Chinavia (Genevcius et al. 2012) . The vesica is slightly curved towards the ventral surface; the processes of vesica are curved towards the ventral surface, with divergent apices (for illustrations, see Fig. 38 in Schwertner & Grazia 2006). The internal female genitalia (Fig. 6 a) are relatively conserved, varying virtually only with respect to length and width of capsula seminalis, processes of capsula seminalis and pars intermedialis (see redescriptions below for details).