Couplet 5.
Sternaulus represented by two, parallel, distinctly sculptured grooves (Figs. 1 and 2: arrows)
1.Fig. 1.
2.Fig. 2.
Sternaulus either absent (Fig. 1) or represented by a single groove that is either sculptured (Fig. 2: arrow) or unsculptured (Fig. 3) (Subfamilies Opiinae and Braconinae)
1.Fig. 1.
2.Fig. 2.
3.Fig. 3.
future couplets
