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Identification

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)

Distribution

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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

Synonym(s)

No synonyms

Common name(s)

No common name