Engel, Michael S.Brooks, Robert W.2015-02-022015-02-021998-01-01Engel, Michael S.; Brooks, Robert W. (1998). "The nocturnal bee genus Megaloptidia (Hymenoptera: Halictidae)." Journal of Hymenoptera Research, 7(1):1-14: http://www.pensoft.net/journals/jhr/1070-9428https://hdl.handle.net/1808/16478This is the publisher's version, also available electronically from http://biostor.org/reference/29023.See article for abstract.ArticleopenAccess