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Genus Syrphus
This genus includes 11 North American species. They are multivoltine. Larvae are predators of both free-living and gall-forming aphids (Vockeroth 1992).
Identification
They have robust body with shining scutellum. This is the only genus in tribe Syrphini has long hairs on the upper surface of the lower lobe
of the calypter. Their abdominal tergite 2 has pair of yellow spots and tergites 3 and 4 have entire or divided bright yellow bands (Vockeroth 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
Direct Children:
Syrphus attenuatus Hine, 1922
Syrphus currani Fluke, 1939
Syrphus dimidiatus Macquart, 1834
Syrphus doesburgi Goot, 1964
Syrphus intricatus Vockeroth, 1983
Syrphus knabi Shannon, 1916
Syrphus monoculus (Swederus, 1787)
Syrphus opinator Osten Sacken, 1877
Syrphus rectus Osten Sacken, 1875
Syrphus ribesii Linnaeus
Syrphus sexmaculatus (Zetterstedt, 1838)
Syrphus sonorensis Vockeroth, 1983
Syrphus torvus Osten Sacken, 1875
Syrphus vitripennis Meigen, 1822