The larva of Gomphurus ventricosus (Walsh), and comments on relationships within the genus (Anisoptera: Gomphidae)

A brief review of larval morphology of Gomphurus species indicates that (I) species may be divided into two highly distinctive groups, (2) two species, G. consanguis Sel. and G. rogersi Gloyd should be removed from Gomphurus and (3) Gomphurus should be considered a genus, not a subgenus. A larval description of G. ventricosus is provided, based on exuviae of adults reared from Scott Co., VA, USA.