Bat Fly vs Arctic Flower Fly

Side-by-side species comparison

Attribute Bat Fly Arctic Flower Fly
Scientific Name Penicillidia conspicua Platycheirus melanopsis
Order Diptera Diptera
Family Nycteribiidae Syrphidae
Size 2-5 mm 5-8 mm
Habitat Caves Meadows
Diet Parasites Herbivores
Regions Europe, Asia, Africa Arctic Canada, Alaska, Greenland, northern Scandinavia, Siberia
Conservation Least Concern Least Concern

Bat Fly

A bizarre wingless fly that lives exclusively as an ectoparasite on bats. It has lost its wings entirely and scurries through bat fur like a spider.

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Did You Know?

These flies have evolved to look and move like spiders, having completely lost their wings and flattened their bodies for life in bat fur.

Arctic Flower Fly

A small hover fly with a dark body and distinctive pale facial markings. It is an important pollinator of Arctic wildflowers. Larvae are predatory on aphids in tundra vegetation.

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Did You Know?

This hover fly is one of the most important pollinators in the High Arctic where bees are scarce or absent.