''Omegasyrphus coarctatus '' , the orange-legged ant fly, is a rare species of

syrphid fly Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while ...

observed across the United States. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers except ''Microdon'' species are seldom observed around flowers. Larvae have been found in the nests of the ant species ''

Monomorium ''Monomorium'' is a genus of ants in the subfamily Myrmicinae. As of 2013 it contains about 396 species. It is distributed around the world, with many species native to the Old World tropics. It is considered to be "one of the more important grou ...

minutum'' and '' Aphaenogaster fulva''

References

Diptera of North America Hoverflies of North America Microdontinae Insects described in 1864 {{Syrphidae-stub