Simla, Arima-Blanchisseuse Rd. In American Museum of Natural History. Although the posterior lobe of the pronotum in the holotype is entirely pale, and the hemelytra chiefly so, this is not true of most of the type series. This species appears to be sexually dimorphic. Females, in addition to being larger, are usually very dark with the hemelytra predominately dark chocolate brown.
Many males also are much darker than the holotype.
Specimens of both sexes usually have a dark stripe on the meson of the posterior pronotal lobe. They frequently have additional dark striping on the posterior pronotal lobe and have the anterior third of the corium with a dark macula. The darker coloration is found in most Central American specimens as well. Referring to a similarity to O. atropicta. Acknowledgments Florida Agricultural Experiment Station Journal Series No.