A revision of Francis Walker's types of North American Empididae (Diptera).
Series: Bulletin of the British Museum (Natural History). Entomology,; v. 26, no. 8
Publisher: British Museum (Natural History) Entomology
Published: 1971
Place of publication: London
Language: eng
Number of pages: 370
Subjects: Empididae.; Diptera -- North America.
Notes: Bibliography: p. 368-369.