Synopsis of the North American Syrphidae
By: by Samuel W. Williston
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 28166; CIHM/ICMH microfiche series -- no. 28166
Publisher: G.P.O.
Published: 1886
Place of publication: Washington
Language: eng
Format: Microform
Number of pages: 209
Subjects: Syrphidae.; Diptera -- North America.; Syrphidés.; Diptères -- Amérique du Nord.
Notes: Added t.p.: Bulletin of the United States National Museum, no. 31.

Includes index.

Filmed from a copy of the original publication held by the Library, National Museums of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1982.

xxx, 335 p. : ill. ; 24 cm.