Hawaiian Picture-wing Fly (Heteroneura) vs Golden-belted Tachinid

Side-by-side species comparison

Attribute Hawaiian Picture-wing Fly (Heteroneura) Golden-belted Tachinid
Scientific Name Drosophila heteroneura Ectophasia crassipennis
Order Diptera Diptera
Family Drosophilidae Tachinidae
Size 5-7 mm 6-10 mm
Habitat Forests Underground
Diet Wood Feeders Parasites
Regions Oceania (Hawaii - Big Island) Europe
Conservation Endangered Least Concern

Hawaiian Picture-wing Fly (Heteroneura)

A remarkable Hawaiian picture-wing fly famous for its hammer-shaped head, found only on Hawaii Island. Males use their broad, flattened heads in head-butting contests for mating rights. It breeds in decaying Clermontia bark.

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Did You Know?

Males have uniquely hammer-shaped heads that they use as battering rams, headbutting rival males in combat over territory and mates.

Golden-belted Tachinid

A colorful parasitic fly with golden-yellow markings and dark wing patches. Parasitizes shieldbugs and stink bugs. Often seen on umbellifer flowers.

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Did You Know?

The conspicuous wing markings may be involved in mating displays among the otherwise cryptic tachinid flies.