Caterpillar Tachinid vs Plain-faced Dronefly

Side-by-side species comparison

Attribute Caterpillar Tachinid Plain-faced Dronefly
Scientific Name Lydella thompsoni Eristalis arbustorum
Order Diptera Diptera
Family Tachinidae Syrphidae
Size 5-8 mm 9-11 mm
Habitat Farmland Gardens
Diet Parasites Nectar Feeders
Regions Europe, North America Europe, North America, Asia
Conservation Least Concern Least Concern

Caterpillar Tachinid

A small gray parasitic fly that attacks European corn borer larvae. It was introduced to North America as a biological control agent.

💡

Did You Know?

Females deposit live larvae rather than eggs directly onto the host caterpillar.

Plain-faced Dronefly

A small, dark dronefly with a distinctive bare facial stripe. It is one of the most common hoverflies visiting garden flowers in summer.

💡

Did You Know?

It can be distinguished from other droneflies by the shiny, hairless stripe down the center of its face.