Janus Elephant Beetle vs Ochraceum Black Fly

Side-by-side species comparison

Attribute Janus Elephant Beetle Ochraceum Black Fly
Scientific Name Megasoma janus Simulium ochraceum
Order Coleoptera Diptera
Family Scarabaeidae Simuliidae
Size 60-120 mm 1.5-3 mm
Habitat Mountains Mountains
Diet Sap Feeders Blood Feeders
Regions Bolivia, Brazil, Peru Mexico, Guatemala, southern Mexico, Central America
Conservation Not Evaluated Least Concern

Janus Elephant Beetle

A massive rhinoceros beetle with a forked cephalic horn and broad pronotal horns. It is among the bulkiest of South American beetles.

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Did You Know?

Males can lift objects over 100 times their own body weight using their horns during combat.

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.