Sibaria Stål, 1872

Krein, Verônica, Bianchi, Filipe M., Rider, David A. & Grazia, Jocelia, 2020, Taxonomic review of Sibaria Stål, 1872 (Heteroptera: Pentatomidae: Pentatominae: Carpocorini), with description of a new species, Zootaxa 4779 (3), pp. 391-408 : 394-395

Key to species of Sibaria Stål, 1872

1 Males ...............................................................................................2 – Females............................................................................................. 5

2(1) Posterior margin of pygophore quadrangular/rectangular ( Fig. 4G )............................. armata ( Dallas, 1851) – Posterior margin of pygophore sinuous, U-shaped, not quadrate or rectangular ( Fig. 4A, D, J )..........................3

3(2) Posterior margin of pygophore shallowly U-shaped, sides of U distinctly sinuous (pentasinuous) ( Fig. 4J, L )............................................................................................... englemani Rolston, 1975

– Posterior margin of pygophore U-shaped, sides of U not sinuous and projected posteriorly ( Fig. 4A, C, D, F ).............4 4(3) Inner projection on each posterolateral angle of pygophore not prominent, giving appearance of a small emargination ( Fig. 4D, F )................................................................................ andicola Breddin, 1904

– Inner projection on each posterolateral angle of pygophore distinctly prominent ( Fig. 4A, C )........... amazonica sp. nov.

5(1) Hind femur with distal spines............................................................................6 – Hind femur with distal spines absent or reduced to tubercles................................................... 7

6(5) Gonocoxites IX trapezoidal ( Fig. 7D )................................................. .. englemani Rolston, 1975 – Gonocoxites IX shaped differently, with lateral margins convex ( Fig. 7C )........................ armata ( Dallas, 1851)

7(5) Gonocoxites VIII with posteromesial angles rounded and strongly projected posteriorly, posterolateral margins slightly convex ( Fig. 7B ).......................................................................... andicola Breddin, 1904

– Gonocoxites VIII with posteromesial angles weakly projected posteriorly, posterolateral margins straight ( Fig. 7A )............................................................................................ ... amazonica sp. nov.

Figures

FIGURE 4. Pygophore of species of Sibaria. S. amazonica sp. nov.: A. Dorsal view; B. Posterior view; C. Ventral view; S. andicola: D. Dorsal view; E. Posterior view; F. Ventral view; S. armata: G. Dorsal view; H. Posterior view; I. Ventral view; S. englemani: J. Dorsal view; K. Posterior view; L. Ventral view. Scale bars: 0.5 mm.

FIGURE 7. External female genitalia: A. S. amazonica sp. nov.; B. S. andicola; C. S. armata; D. S. englemani (gcVIII = gonocoxites VIII; gcIX = gonocoxites IX; laVIII = laterotergites VIII; laIX = laterotergites IX). Scale bars: 1 mm.