Robber Flies
Asilidae of Goodwell and Texhoma
Texas Co. Oklahoma

Male Efferia External Genitalia For quick reference

E. luna


External male gentilia of E. pognias and helenae, are difficult to separate

E. pogonias




E. helenae



External male gentilia of E. pognias and helenae, are difficult to separate


E. argentifrons


E. pallidula


E. aestuans


Long white hairs on segments 2-4


E. kansensis

E. snowi


Long white hairs on segments 2-4


E. leucocoma
Image of male none available yet


E. cressoni


E. albibarbis