Syrphus opinator Osten Sacken, 1877
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Identification
Entirely yellow frons, bare eyes, 3rd and 4th abdominal terga with yellow bands (not reach the lateral margins). Also, first tarsomere of
mid leg with many black setulae and hind femur yellow in females (Vockeroth 1992).
Syrphus opinator can be confused with S. ribesii, S. rectus, or S. vitripennis but black setulae and entirely trichose Cua1 (wing venation)
help to differentiate from other species. (Source: Entomology collection (E.H. Strickland Entomological Museum) )
Length: 8.8-11.7 mm (Vockeroth 1992)
Distribution
Syrphus opinator common through Western Canada and South between California and Texas but not found in Manitoba (Vockeroth, J.R. 1992).
Taxonomic Hierarchy
Kingdom Animalia
Phylum Arthropoda
Subphylum Hexapoda
Class Insecta
Subclass Pterygota
Infraclass Neoptera
Order Diptera
Suborder Brachycera
Infraorder Muscomorpha
Family Syrphidae
Subfamily Syrphinae
Tribe Syrphini
Genus Syrphus
Species
Syrphus opinator Osten Sacken, 1877