THE UNIVERSITY OF KANSAS SCIENCE BULLETIN Vol. XLVI Pages 509-624 June 17, 1966 No. 16 Systematics of the Genus Atigochlorella (Hymenoptera, Halictidae) North of Mexico^ By Ellen Ordway-ABSTRACT In a revision of the bee genus Augochlorella, descriptions and keys are given for seven species occurring north of Mexico and one species and a subspecies from Mexico. One species from Texas, A. bracteata and the subspecies A. neglectula maritima from Mexico are new, and the male of A. edemata is described for the hrst time; A. neglectula is raised from synonymy, and A. aurata of recent authors has been divided so that most of the specimens from north of the Gulf Coast states are placed in A. persimilis. Other species treated are A. pomoniella, A. gratiosa and A. striata. Regional as well as individual variations are treated in detail since there is considerable morphological intergradation among females of some species. INTRODUCTION Although bees of the genus Aiigochlorella (Halictidae) are common over much of the United States, their interspecific relationships and biologies are little understood. This paper is a result of a study of interspecific relation-ships of the two species of Aiigochlorella occurring in the vicinity of Law-rence, Kansas. Females of the two species, persimilis and striata, could not be satisfactorially distinguished and preliminary biological observations indi-cated little or no difference between them. In order to understand the nature of the variations and intergradations occurring between these two, all species occurring within the United States were examined. They are redefined and illustrated, keys for their identification are provided, and variations within species analyzed. Lavvrcn"e "''"''"" """'''"' ^"^'^ ^''""'' '''^ r^'-^Pa«"^cnt <.f Entomology, The University of Kansas, 'Present address, D.vision of Science & Math., University of Minnesota, Morris, Minnesota.
BioStor
