anterior margin of t2 entire, overlapping posterior extremity of petiole; t2 without a blunt anteromedian process (Fig. M96, M97, M132, M134, M136)
future couplets
Macropterous (Fig. 45) (p.52) (part) ...
Betyla
Gaster with 3 free tergites between... ...
Parabetyla
Gaster with fewer than 3 free tergi... ...
Betyla
Tegula and mesoscutal-mesoscutellar... ...
Parabetyla
Tegula and mesoscutal-mesoscutellar... ...
Zealaptera
Gaster with only 1 completely free ... ...
Betyla