Key to the species of Stenodema associated to Poaceae in Colombia

(adapted from Carvalho, 1975)

1 Antennal segment I and basal half of segment II with erect hairs as long as or longer than width of segments; segment II near twice as long as segment I (Fig. 29)............................................................. S. praecelsus

- Antennal segment I and II with short hairs less than width of segments; segment II more than twice as long as segment I......................................................................................................... 2

2 Length of membrane surpassing apex of cuneus around twice as long as length of cuneus (Fig. 25)............... S. dohrni

- Length of membrane surpassing apex of cuneus shorter or as ong as length of cuneus (Fig. 21)................. S. andina