Phasia Tachinid vs Horn-faced Marsh Fly

Side-by-side species comparison

Attribute Phasia Tachinid Horn-faced Marsh Fly
Scientific Name Phasia hemiptera Dictya umbrarum
Order Diptera Diptera
Family Tachinidae Sciomyzidae
Size 7-10 mm 4-7 mm
Habitat Underground Wetlands
Diet Nectar Feeders Detritivores
Regions Europe North America
Conservation Least Concern Least Concern

Phasia Tachinid

A parasitic fly with distinctive dark-tipped wings that parasitizes shieldbug species. Males have broader wings than females. Adults visit flowers for nectar.

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Did You Know?

Larvae develop inside living shieldbugs, eventually consuming and killing their hosts.

Horn-faced Marsh Fly

A small yellowish marsh fly with patterned wings and prominent facial ridges. Larvae feed on decomposing aquatic snails in shallow wetland habitats.

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Did You Know?

Sciomyzid flies are the only family of Diptera in which the larvae are obligate associates of mollusks.