NOTES ON SAWFLIES, WITH DESCRIPTIONS OF NEW GENERA AND SPECIES. By S. A. Rohwer, Custodian of Eymenoptera, United States National Museum. The types of most of the new species here described are in the collection of the United States National Museum. A few, however, are in the collections of other institutions which have forwarded the material to the author at his request and on the condition that the types be returned to them. Suborder IDIOGASTRA. STIROCORSIA KOHLI Konow. A single male collected at Sandakan, Borneo, by C. F. Baker agrees fairly well with the description of the female given by Konow and is, I believe, the male of his species. Length, 8 mm. Anterior trochanters and hind tibiae dark piceous; ventral sternite produced into a rather narrow truncate process apically, the ventral surface with six tubercules arranged so as to form a semicircle. Suborder CHALASTOGASTRA. Family XIPHYDRIIDAE. XIPHYDRIA ABDOMINALIS Say. Xiphydria abdominalis Say, Keating's Narr. Exped. appendix, vol. 2, 1824, p. 311; LeConte's Writings of Say, vol. 2, 1859, p. 208. In my synopsis of the Nearctic species of [Xiphydria l I con-sidered this species to be the same as attenuate/, Norton and rufiventris Cresson, and made a specimen from Harrisburg, Pennsylvania, a neotype for Say's species. A single female specimen collected at Charter Oak, Pennsylvania, June 19, 1918, by H. B. Kirk, proves that this interpretation for the species is incorrect and that the specimen chosen as a neotype can not justly be considered as such. > Ent. News, vol. 29, 1918, pp. 105-111. Proceedings U. S. National Museum, Vol. 59-NO.-236I. 83
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