Stridulating Passalid vs Chinese Aquatic Firefly

Side-by-side species comparison

Attribute Stridulating Passalid Chinese Aquatic Firefly
Scientific Name Passalus punctatostriatus Aquatica ficta
Order Coleoptera Coleoptera
Family Passalidae Lampyridae
Size 30-42 mm 8-12 mm
Habitat Woodlands Rivers & Streams
Diet Wood Feeders Omnivores
Regions Central America, South America China
Conservation Least Concern Vulnerable

Stridulating Passalid

A large, shiny black bess beetle with prominently punctate-striate elytra and strong mandibles. It lives in family groups within decaying logs. Known for producing a wide repertoire of stridulatory sounds for communication.

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Did You Know?

Adults produce sounds by rubbing specialized ridges on the abdomen against the underside of the wings, creating at least 14 distinct calls.

Chinese Aquatic Firefly

A firefly with fully aquatic larvae found in streams across southern China. It was the first species placed in the genus Aquatica, erected specifically for water-dwelling lampyrids.

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Did You Know?

Larvae breathe underwater using specialized tracheal gills unique among fireflies.