Chinavia geniculata

Genevcius, Bruno C. & Schwertner, Cristiano F., 2014, Review and phylogeny of the geniculata group, genus Chinavia (Heteroptera: Pentatomidae), with notes on biogeography and morphological evolution, Zootaxa 3847 (1), pp. 33-56 : 42

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).

Figures

FIGURE 4. Dorsal view of the geniculata group species. A = C. cearensis, B = C. erythrocnemis, C = C. geniculata, D = C. gravis, E = C. immaculata, F = C. nigritarsis, G = C. nigropicta, H = C. panamensis, I = C. pontagrossensis, J = C. rogenhoferi, K = C. rideri, L = C. sebastiaoi, M = C. tuiucauna, N = C. vanduzeei.

FIGURE 5. Dorsal view of the pygophores of the geniculata group species. A = C. cearensis, B = C. erythrocnemis, C = C. geniculata, D = C. gravis, E = C. immaculata, F = C. nigritarsis, G = C. pontagrossensis, H = C. rideri, I = C. sebastiaoi, J = C. vanduzeei; pa = posterolateral angle.

FIGURE 6. Internal genitalia of the geniculata group. A = female internal ducts (C. erythrocnemis); B = male phallus (C. geniculata). aaf = anterior annular flange, cs = capsula seminalis, paf = posterior annular flange, pcs = processes of capsula seminalis, pi = pars intermedialis; ph = phalloteca, pv = processes of vesica, v = vesica.