Ochraceum Black Fly vs Dewy Ringlet

Side-by-side species comparison

Attribute Ochraceum Black Fly Dewy Ringlet
Scientific Name Simulium ochraceum Erebia pandrose
Order Diptera Lepidoptera
Family Simuliidae Nymphalidae
Size 1.5-3 mm 34-42 mm wingspan
Habitat Mountains Mountains
Diet Blood Feeders Nectar Feeders
Regions Mexico, Guatemala, southern Mexico, Central America Europe, Scandinavia, Urals
Conservation Least Concern Least Concern

Ochraceum Black Fly

A small orangish-brown black fly that is the principal vector of onchocerciasis in Central America and southern Mexico. It breeds in small, fast-running mountain streams. Biting activity peaks in the early morning and late afternoon in coffee-growing regions.

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Did You Know?

The Americas are close to eliminating onchocerciasis thanks to mass ivermectin distribution targeting this vector's parasite.

Dewy Ringlet

A widespread alpine ringlet with grayish-brown wings and small eyespots. It is found across many mountain ranges from Scandinavia to the Balkans.

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Did You Know?

It is the most widespread alpine ringlet species in Europe.