Descriptions of New North American Hymenoptera in the Collection of the American Entomological Society

Abstract

E. T. Cresson, Descriptions of New North American Hymenoptera in the Collection of the American Entomological Society, Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences, Vol. 7 (1878/1879), pp. 61-136