A REVISION OF THE GENUS
PIPIZA FALLN (Diptera, Syrphidae)
AMERICA NORTH OF MEXICO
by Gary A. Coovert
1996, 68 pages, b/w drawings, dot-distribution maps. Provides a revised classification of Syrphidae with key to 11 species (two new). Contains descriptions or redescriptions of type, comparisons, notes on distribution, range maps, flower records, and comment for each species. Includes illustrations of hind femora and male genitalia for all species (head and abdomen for selected species). Wirebound; 8-1/2 x 11″.
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