Descriptions of new hymenoptera
Crawford, J.C.
Descriptions of new hymenoptera - Washington 1911 - 617-623 p. - Hymenoptera Proceedings of the United States National Museum, Vol. 39. No. 1804 .
Descriptions of new hymenoptera - Washington 1911 - 617-623 p. - Hymenoptera Proceedings of the United States National Museum, Vol. 39. No. 1804 .