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                                                                                                                                               Copyright Ron Hemberger

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)


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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