Updated resource
Ron Russo's updated guide is now available, and it adds one further creosote bush Asphondylia gall, an apical, scimitar-shaped gall provisionally labeled Asphondylia sp. and named "scimitar-leaf-gall midge". The description: "This midge induces flat-sided, sword-shaped, striated, monothalamous bud galls on creosote bush. These galls are green when fresh but turn brown with age. The laterally-flattened sides are furrowed with shallow ridges. The apex of the gall is usually obtuse, and the whole gall is arched. These distinctive galls are almost all on terminal buds and stand out from normal leaves. Adults have not been reared for identification to species level. Their behavior is likely similar to that of other Asphondylia adults."
