which is not fine but which does not show any of the broadening char acteristic of true Cynips.
Compressus Gillette, 1891, Bull. 111. Lab. Nat. Hist. 3:197. Acraspis in orig. publ. and later authors. I have seen the National Museum type. The tarsal claws are simple, the wings entirely lacking, and the hypopygial spine long, very slender, with scattered hairs but without a tuft of hairs terminally. The gall occurs on black oak. All of these characters disagree with those of true Cynips. Weld (1926, Proc. U.S. Nat. Mus. 68 (10): 55) considers this insect a Zopheroteras.
Confusa Ashmead, 1881, Trans. Amer. Ent. Soc. 9: XVIII. Cynips in orig. publ. Neuroterus, Dryophanta, and Diplolepis of later authors. The National Museum types are lost. From the original description, this black oak insect appears to belong to the palustris group, and it would be ruled out of true Cynips on the same basis as palustris (q.v.).
Corrugis Bassett, 1890, Trans. Amer. Ent. Soc. 17: 71. Dryophanta in orig. publ. Dryophanta or Diplolepis of later authors. I have seen the types in the Philadelphia Academy. The thorax is largely smooth and shining but transversely wrinkled, the wing veins are very pale and almost colorless, and the hypopygial spine, altho rather stout and well developed, is not broadened and does not have the terminal tuft of hairs of a true Cynips.
Cressoni Beutenmüller, 1913, Trans. Amer. Ent. Soc. 39:248. Dryophanta in orig. publ. Not known except from the holotype which is in the Beutenmüller collection and inaccessible at this time. Unless the description is correct in recording the radial cell as closed, I can see no warrant in this original publication either for including or excluding this apparently bisexual insect from true Cynips.
Discalis Weld, 1926, Proc. U.S. Nat. Mus. 68 (10): 24. Diplolepis in orig. publ. I have seen the holotype at the National Museum and several paratypes. The insect belongs to the discus group and is ruled out of true Cynips on the same basis as discus (q.v.).
Discularis Weld, 1926, Proc. U.S. Nat. Mus. 68 (10): 25. Diplolepis in orig. publ. I have seen the holotype in the National Museum and several paratypes. Belongs to the discus group and is ruled out of true Cynips on the same basis as discus (q.v.).
Discus Bassett, 1900, Trans. Amer. Ent. Soc. 26:326. Dryophanta in orig. publ. Dryophanta and Diplolepis of later authors. I have seen the holotype and paratypes in the Philadelphia Academy. The insect is quite small, the hypopygial spine is long, very slender, without a terminal tuft of hairs, and very different from true Cynips. The gall is a small, thin, and flattened disc bearing no resemblance to any Cynips gall except that of guadaloupensis. The agamic insects emerge early in the spring, several months after most Cynips.
