Eastern Calligrapher vs Black-Tailed Deer Fly

Side-by-side species comparison

Attribute Eastern Calligrapher Black-Tailed Deer Fly
Scientific Name Toxomerus geminatus Chrysops niger
Order Diptera Diptera
Family Syrphidae Tabanidae
Size 5-7 mm 7-10 mm
Habitat Woodlands Wetlands
Diet Nectar Feeders Blood Feeders
Regions North America Northeastern United States and southeastern Canada
Conservation Least Concern Least Concern

Eastern Calligrapher

A tiny hoverfly with intricate black calligraphic markings on a yellow abdomen. It is one of the most abundant flower flies in eastern North America.

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Did You Know?

Despite its small size, it is one of the most effective aphid predators in North American gardens.

Black-Tailed Deer Fly

A small dark deer fly with mostly blackened wings and green iridescent eyes. It is an aggressive daytime biter commonly encountered near wooded wetlands.

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Did You Know?

It is most active during overcast humid days and tends to bite repeatedly if swatted away without being killed.