Green Lacewing Firefly vs Speyer's Cave Beetle

Side-by-side species comparison

Attribute Green Lacewing Firefly Speyer's Cave Beetle
Scientific Name Photinus scintillans Aphaobius milleri
Order Coleoptera Coleoptera
Family Lampyridae Leiodidae
Size 5-8 mm 3-5 mm
Habitat Grasslands Caves
Diet Omnivores Detritivores
Regions North America Austria, Slovenia
Conservation Least Concern Least Concern

Green Lacewing Firefly

A small firefly with a bright green flash and a dark body with yellowish pronotal borders. Males produce a brief twinkling flash while flying low over grasslands and meadows.

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Did You Know?

The word scintillans means sparkling, referring to the brief twinkling quality of this species' distinctive flash.

Speyer's Cave Beetle

A troglobitic beetle endemic to caves in the eastern Alps. It has a convex body shape and completely lacks eyes.

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Did You Know?

It can tolerate near-freezing temperatures in high-altitude caves.