North american bees of the genus nomia
Cockerell, T.D.A.
North american bees of the genus nomia - Washington 1910 - 289-298 p. - Proceedings of the United States National Museum, Vol. 38. No. 1745 .
North american bees of the genus nomia - Washington 1910 - 289-298 p. - Proceedings of the United States National Museum, Vol. 38. No. 1745 .