with the mesonotum very smooth and shining, the hypopygial spine rather slender, blunt, and without any broadened area, and the eyes of the male prominently enlarged. The galls and life histories differ from true Cynips.
Vaccinii Ashmead, 1887, Trans. Amer. Ent. Soc. 14:127, 136. Acraspis in orig. publ. Acraspis, Zopheroteras, Trigonaspis, and Philonix of later authors. I have studied the holotype and the paratype in the U.S. National Museum. The tarsal claws are simple, the wings entirely lacking, and the hypopygial spine long, very slender, with scattered hairs but without a tuft terminally. These are not Acraspis characters.
Vacciniifoliae Ashmead, 1896, Proc. U.S. Nat. Mus. 19:130. Callirhytis in orig. publ. Diplolepis in Weld 1926: 36. I have seen the National Museum holotype and numerous paratypes. The thorax of the insect and the oak-apple type of leaf gall are similar to those of true Cynips; but the insect differs materially from Cynips in its rather fine wing venation, its radial cell which is very long, straight, and narrow, and its hypopygial spine which is very slender, sharply pointed, slightly curved, and without a terminal tuft of hairs.
