Comment: NOTE: This species is similar to P. marginata but tends to have a much broader frons near the frontoclypeal suture than does P. marginata (the frons of dolus appears wide whereas the frons of marginata appears elongate); the frons in dolus also tends to be brownish whereas marginata has a pale, whitish frons. Note this diagram of Prokelisia faces and see how the shape of the frons compares between dolus and marginata; dolus is typically less than two times longer than wide whereas marginata is around two times longer than wide. Compare images of specimens on the following page: UDEL. For differences in females of Prokelisia, see: Heady & Wilson, 1990.
Interestingly, Wilson (1982) states that an analysis of Prokelisia specimens collected revealed that there was a relationship, though not absolute, between wing length and species. 84.0% of P. dolus specimens were brachypters while 81.6% of P. marginata specimens were macropters. However, a majority of P. marginata from the Florida Keys were brachypters, with the theory being that greater stability of habitats leads to higher incidence of brachypters. Just something to keep in mind when finding brachypter or macropter Prokelisia dolus/marginata in the state. |