explore:

Say, T. 1824. Order Hymenoptera. Appendix pp. 50-86 in: Narrative of an Expedition to the Source of St. Peter’s River, Lake Winnepeek, Lake of the Woods, etc. Performed in the Year 1823 by Order of the Hon. J. C. Calhoun, Secretary of War, under the Command of Stephen H. Long, U.S.T.E. Compiled from the Notes of Major Long,Messrs. Say, Keating and Calhoun by W. H. Keating, Vol. 2. Geo. B. Whittaker, London [1824 Philadelphia]. v-vi + 1-248 + 3-144 appendix + 2 plates.

Taxa (in this database) described in this work:

Evania unicolor