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Subfamily Eristalinae

Syrphid- - Eristalis arbustorum - female Helophilus sp. - Helophilus fasciatus unknown fly on frostweed flowers - Palpada furcata Syrphid Bombus Mimic - Sericomyia flagrans - male Eristalis tenax?  - Eristalis tenax Copestylum species - Copestylum Syrphid Fly - Palpada vinetorum which Temnostoma? - Temnostoma balyras
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Eristalinae
Numbers
~500 spp. in 73 genera in our area(1)
Identification
humeri pilose
Habitat
larvae in moist, sometimes shallow aquatic environments
This subfamily has the widest range of larval habitats. Most Eristalinae larvae are saprophagous. They live in sap trails, under bark, in rot-holes in trees and in decaying organic material such as dung and compost. Some live as scavengers on the remains of insects and other material. Others are leaf miners, tunnel in stems and root. Some are specialize on wax-secreting aphids. Some are parasitoids in wasp or bees nests.
Food
larvae of most feed on decaying organic debris. They are filter feeders in different kinds of aquatic media. They purify water by filtering microorganisms and other products.
Internet References
Works Cited
1.Key to the genera of nearctic Syrphidae
Miranda G.F.G, Young A.D., Locke M.M., Marshall S.A., Skevington J.H., Thompson F.C. 2013. Canadian Journal of Arthropod Identification 23: 1-351.