Syrphus ribesii (Linnaeus, 1758)
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Identification

Dark frons , bare eyes, 3rd  and 4th abdominal terga with yellow bands (complete or divided in the middle) and wing membrane entirely trichose.
	  
	                               Source: Entomology collection (E.H. Strickland Entomological Museum) 
	   
  
	  Length: 8.1-13.3 mm (Vockeroth 1992)
	  
	   
Biology
Larvae of Syrphus ribesii feed on several species of aphids (Láska and Starý, 1980).
Distribution
 
	Alaska, Canada, South to California, Mexico, Central America, Mississippi, Europe, Asia (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 ribesii (Linnaeus, 1758)
 
               
    
Scaeva concava Say, 1823
Syrphus autumnalis Fluke, 1954
Syrphus bigelowi Curran, 1924
Syrphus jonesi Fluke, 1917
Syrphus philadelphicus Macquart, 1842
Syrphus similis Jones, 1917
Syrphus vittafrons Shannon, 1916