Author: Hurd, Paul D. & Ch.D.Michener.
Title: The Megachiline Bees of California (Hymenoptera: Megachilidae).
Description: Berkeley, 1955. 247 pp. Ills & maps. Soft cover. (Bull. of the Calif. Insect Survey 3).

Keywords: Entomology Bees Apoidea America Entomologie Bijen Amerika