Couplet 137

 

137a:  Dorsal face of mandible with tubercle that fits into cavity on clypeus, setose cavity at base, hidden when mandibles are closed (mycangium); elytra with scutellary striole; antenna with 2 or 3 antennomeres forming club; body oval to cylindrical

Sphinidae   p. 429


 

137b:  Mandible without dorsal mycangium; elytra without scutellary striole; antenna and body shape variable

Go to Couplet  138

 

Go Back to Couplet  136