Mahogany Dun vs Peafowl Feather Louse

Side-by-side species comparison

Attribute Mahogany Dun Peafowl Feather Louse
Scientific Name Isonychia harperi Goniodes pavonis
Order Ephemeroptera Phthiraptera
Family Isonychiidae Philopteridae
Size 13-17 mm 2-4 mm
Habitat Rivers & Streams Gardens
Diet Omnivores Omnivores
Regions North America South Asia, Worldwide in captive populations
Conservation Least Concern Least Concern

Mahogany Dun

A large reddish-brown mayfly with impressive filter-feeding forelegs. Nymphs prefer moderate to fast riffles with clean gravel substrates.

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Did You Know?

Adults hold their forelegs forward in flight, making them easy to identify on the wing.

Peafowl Feather Louse

A large chewing louse found on peafowl and pheasants. It feeds on feather material and can damage the ornamental plumage of peacocks.

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Did You Know?

Heavy infestations can damage the spectacular tail feathers that peacocks depend on for courtship displays.