Scellus virago Aldrich (a two-winged fly) and two forms closely related to it
By: by M. C. Van Duzee ...
Series: Proceedings of the California Academy of Sciences. 4th series -- v. 14, no. 10; Proceedings of the California Academy of Sciences -- v. 14, no. 10
Published: 1925
Place of publication: San Francisco
Language: eng
Number of pages: 183
Subjects: Flies
Notes: Caption title.