''Epistrophella emarginata'' is a common North American species of

hoverfly 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 ...

. Larvae are aphid predators When laying eggs, the female oviposits on the petioles of a leaf.

Distribution

upright=1.0, left, USA distribution map *USA: D.C., Alabama, Alaska, Arkansas, Indiana, Illinois, Iowa, Kansas, Maine, Maryland, Michigan, Massachusetts, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Vermont, Virginia, West Virginia, Wisconsin. *Canada: Saskatchewan, Alberta, Manitoba, Ontario, Quebec, Nova Scotia, New Brunswick *Central America: Mexico, El Salvador

References

Syrphini Insects described in 1823 Diptera of North America {{Syrphidae-stub