Asphondylia resinosa (Diptera: Cecidomyiidae)
Creosote Resin Gall Midge
Beck Spring off Excelsior Mine Road, San Bernardino County, California
April 7, 2008

Adult midge with creosote bush (Larrea tridentata) gall from which it emerged. The black exuvia is visible sticking halfway out of the gall.