Polaszek, Andrew (compiler). Apoidea Database, Fauna Europaea http://www.faunaeur.org/
Reference for:
Halictus concinnus
Source:
World Bee Checklist Project - update 2008-09
Acquired:
2008-09-10
Notes:
John Ascher, Connal Eardley, Terry Griswold, Gabriel Melo, Andrew Polaszek, Michael Ruggiero, Paul Williams, Ken Walker, and Natapot Warrit. Additional credits noted at: http://www.discoverlife.org/mp/20q?act=x_guide_credit&guide=Apoidea_species