Title
Pyrgus communis and Pyrgus albescens (Hesperiidae: Pyrginae) are separate transcontinental species with variable but diagnostic valves
By
Burns, John McLauren
Original Publication
Journal of the Lepidopterists' Society
Published by
[New Haven, Conn.] Lepidopterists' Society 1959-
Identifiers
BioStor:
https://biostor.org/reference/115757