1 | Epistoma depressed, margined at sides by oblique strioles continuous with frontal stria | Operclipygus dubitabilis (Marseul) |
– | Epistoma convex, lacking lateral striae; frontal stria simple across front | Operclipygus yasuni sp. n. |
1 | Epistoma depressed, margined at sides by oblique strioles continuous with frontal stria | Operclipygus dubitabilis (Marseul) |
– | Epistoma convex, lacking lateral striae; frontal stria simple across front | Operclipygus yasuni sp. n. |