Date of Award:

5-1-1987

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Biology

Department name when degree awarded

Biology

Committee Chair(s)

Frank D. Parker

Committee

Frank D. Parker

Committee

Mary E. Barkworth

Committee

Wilford J. Hanson

Abstract

The North American portion of the subgenus Nomadita of the genus Nomada is revised. Six species and 2 subspecies are recognized, including the new species timberlakei and the new subspecies snowii arriolaense. Nomada antonita Cockerell is placed in synonymy with snowii snowii. Nomada rodecki Mitchell is removed from the subgenus Nomadita and placed in the subgenus Nomada. The Eurasian species of Nomadita are discussed. A new subgenus, Asteronomada is described based upon Nomada adducta Cresson with new species brewsterae, durangoae, and portalensis described.

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