Antistrophus
Antistrophus is a genus of about 10 species of gall wasps. The genus is only known from the Nearctic. Species of Antistrophus induce galls on plant species in four Asteraceae genera: Silphium, ''Lygodesmia, Chrysothamnus, and Microseris.
The genus was first named and described by Benjamin Walsh in 1869.
This genus includes the following species:Antistrophus bicolor Gillette, 1891Antistrophus chrysothamni Beutenmuller, 1908Antistrophus jeanae Tooker and Hanks, 2004Antistrophus laciniatus Gillette, 1891Antistrophus lygodesmiaepisum Walsh, 1869Antistrophus meganae Tooker and Hanks, 2004Antistrophus minor Gillette, 1891Antistrophus microseris McCracken and Egbert, 1922Antistrophus rufus Gillette, 1891Antistrophus silphii'' Gillette, 1891