Similis Bassett, 1890, Trans Amer. Ent. Soc. 17: 71. Dryophanta in orig. publ. Dryophanta or Diplolepis of most later authors. Name pre-occupied, and therefore changed to simillima by Dalla Torre. I have seen the holotype, in the Philadelphia Academy, and several paratypes. The insect is close to ebumeus Bassett and is ruled out of true Cynips on the same basis. See ebumeus in this list.
Simillima Dalla Torre, 1893, Cat. Hymen. 2: 54. New name for similis Bassett (q.v.).
Splendens Weld, 1919, Canad. Ent. 51:254. Andricus in orig. publ. Diplolepis in later publications of the same author. I have seen the holotype in the National Museum and numerous paratypes. The hypopygial spine is very slender and without a terminal tuft of hairs, and the wing venation is rather fine. The galls are hollow urns with the larval cell at bottom. The agamic insects delay emergence until March or April. These are not Cynips characters.
Sulcata Förster, 1869, Verh. zoo.-bot. Ges. Wien 19:335. Liodora in orig. publ. Dryophanta of later authors. Kieffer (1901, André Hymén. Europe 7 (1): 620) considered this a synonym of Cynips folii folii form taschenbergi. I consider the name unrecognizable. See the discussion under taschenbergi in the body of this paper.
Sulphurea Weld, 1926, Proc. U.S. Nat. Mus. 68 (10): 33. Diplolepis in orig. publ. I have seen the holotype at the National Museum. The hypopygial spine is long, very slender, and without a terminal tuft of hairs. The gall is a hollow cone with the larval cell at the bottom. These are not Cynips characters.
Tecturnarum Kinsey, 1920, Bull. Amer. Mus. Nat. Hist. 42:312, pi. 25 fig. 30-33. Andricus in orig. publ. Diplolepis in Weld 1926:34. I have recently re-examined cotypes The hypopygial spine is very slender and without a terminal tuft of hairs, and the wing venation is rather fine. The galls are hollow urns with the larval cell at bottom, and they occur in dense clusters on the leaves. None of these are Cynips characters. The insects should not have been transferred to Diplolepis (= Cynips).
Tenuicornis Bassett, 1881, Canad. Ent. 13:92. Cynips in orig. publ. Holcaspis, Loxaulis, and Bassettia of latter assignments. Diplolepis in Weld 1926. I have seen the types. The agamic insect has the mesonotum conspicuously coriaceous, the abdomen opaque and rough as ground glass, the hypopygial spine rather short, not fine but not broadened anywhere, without a terminal tuft of hairs. These are not true Cynips characters. The galls are polythalamous, wool-covered, hemispherical masses as different as leaf galls might be from true Cynips galls.
