Key to the species of Collaria associated with Poaceae in Colombia

(adapted from Carvalho & Fontes (1981) and Morales et al. (2016)

1 Head with a V-shaped pale stripe behind posterior margin of eyes or with a transverse black stripe between eyes; head wholly black on sides and inferiorly; endosoma with row of about six thick spines apically, and field of spicules next to secondary gonopore (Figs. 9–12)......................................................................... C. scenica

- Head without a V-shaped pale stripe; head pale, or when black, mandibular plate (lora) pale; endosoma without row of thick spines apically, and field of spicules next to secondary gonopore............................................... 2

2 Clypeus with a black spot; hemelytra with two lateral pale round spots near middle of corium; cuneus mostly pale; endosoma with a brush of long filaments below secondary gonopore (Figs. 1–4).................................. C. boliviana

- Clypeus without a black spot; hemelytra without a pair of lateral pale round spots; cuneus mostly dark; endosoma with a tongue-like area covered by micro spines rising next base of secondary gonopore (Figs. 5–8)................... C. oleosa