The flower flies of the subfamily Syrphinae of Canada, Alaska, and Greenland
Subtitle: Diptera:Syrphidae
By: J.R. Vockeroth.
Series: The Insects and arachnids of Canada,; pt. 18; Publication ;; 1867; Publication (Canada. Agriculture Canada) ;; 1867.
Publisher: Centre for Land and Biological Resources Research, Research Branch, Agriculture Canada
Published: 1992
Place of publication: Ottawa, Ont
Language: eng
Number of pages: 456
Subjects: Syrphidae -- Canada.; Syrphidae -- Alaska.; Syrphidae -- Greenland.
Notes: Includes bibliographical references (p. 432-447) and index.
"Cat. no. A42-42/1991-18E"--T.p. verso.