Platyneuromus

Platyneuromus is a genus of dobsonflies in the family Corydalidae. They are found in Mexico and Central America.

Description

Platyneuromus adults have a distinctive appearance. Unlike dobsonflies of the genus Corydalus, in which males often develop large mandibles, adults have large postocular flanges behind the eyes. Males have mandibles of similar size to females, but often have disproportionately larger flanges, possibly a result of sexual selection. The postocular flanges are also visible in the pupae, facilitating diagnosis of the genus. Male forewing length ranges from 26–59 mm.
Larvae are typical hellgrammites, and fill a similar ecological niche to larvae of Corydalus and other genera. There appears to be an altitudinal gradient between Platyneuromus and Corydalus in Mexico. At low elevations, under a semiarid climate, only C. luteus Hagen is found. At mid elevations, within forested vegetation, both C. luteus and P. soror co-occur, but higher up, only P. soror is nearly always collected.

Species

Platyneuromus honduranus Navás, 1928 ---Guatemala, Honduras, MexicoPlatyneuromus reflexus Glorioso and Flint, 1984 ---Guatemala & MexicoPlatyneuromus soror Hagen, 1861 ---Costa Rica, Mexico, Panama

''Platyneuromus species A''