Hiatomyia cyanescens ,[1] the cobalt deltawing, is an uncommon species of syrphid fly observed in the northeastern United States.

[2] Hoverflies can remain nearly motionless in flight.

The adults are also known as flower flies for they are commonly found on flowers from which they get both energy-giving nectar and protein-rich pollen.

This article relating to Eristalinae is a stub.

You can help Wikipedia by expanding it.