Japanese Hotaruko Firefly vs Sonoran Silk Moth

Side-by-side species comparison

Attribute Japanese Hotaruko Firefly Sonoran Silk Moth
Scientific Name Pyrocoelia fumosa Sphingicampa hubbardi
Order Coleoptera Lepidoptera
Family Lampyridae Saturniidae
Size 12-20 mm 50-70 mm wingspan
Habitat Mountains Deserts & Drylands
Diet Omnivores Omnivores
Regions East Asia, Japan Arizona, Sonoran Desert of Mexico
Conservation Least Concern Least Concern

Japanese Hotaruko Firefly

A large terrestrial firefly with a dark brown body and bright reddish pronotum. The wingless, larviform females produce a bright sustained glow from the ground to attract flying males.

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Did You Know?

The Japanese name 'hotaruko' distinguishes these terrestrial glowworm-type fireflies from the aquatic 'hotaru' species.

Sonoran Silk Moth

A small saturniid moth with warm pinkish-tan wings and minimal patterning. It is adapted to the harsh desert environment of the American Southwest.

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Did You Know?

Its cocoon is spun loosely among leaf litter and is uniquely adapted to survive extreme desert heat.