The flower flies of the subfamily Syrphinae of Canada, Alaska, and Greenland
Subtitle: Diptera, Syrphidae
By: J.R. Vockeroth.
Contributors: Canada. Agriculture Canada.
Series: Insects and arachnids of Canada -- pt. 18.; Publication -- 1867.; Publication (Canada. Agriculture Canada) -- 1867.
Publisher: Agriculture Canada
Published: 1992
Place of publication: [Ottawa]
Language: eng
Subjects: Syrphidae -- Canada.; Syrphidae -- Alaska.; Syrphidae -- Greenland.
Other titles: Diptera: Syrphidae.
Notes: Includes bibliographical references and index.