Full reference: M. S. Engel. 2001. A monograph of the Baltic amber bees and evolution of the Apoidea (Hymenoptera). Bulletin of the American Museum of Natural History 259:1-192
Type specimen: B-JH 152 (AMNH), an exoskeleton. Its type locality is Baltic amber (AMNH collection), which is in a Lutetian terrestrial amber in the Russian Federation.