Trechine Cave Ground Beetle vs Ribbed Pine Borer

Side-by-side species comparison

Attribute Trechine Cave Ground Beetle Ribbed Pine Borer
Scientific Name Aphaenops cerberus Rhagium inquisitor
Order Coleoptera Coleoptera
Family Carabidae Cerambycidae
Size 6-9 mm 10–21 mm
Habitat Caves Forests
Diet Predators Omnivores
Regions French Pyrenees (Ariège, Haute-Garonne) Europe, North America, Asia
Conservation Vulnerable Least Concern

Trechine Cave Ground Beetle

A fully cave-adapted ground beetle from the Pyrenees with no eyes, no pigmentation, and extremely elongated spider-like legs and antennae. It is beautifully adapted to life in total darkness.

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Did You Know?

Named after Cerberus, the three-headed guard dog of the underworld, this beetle navigates pitch-dark caves using enormously elongated antennae that can be twice its body length.

Ribbed Pine Borer

A longhorn beetle found across northern forests that develops under the bark of dead conifers. Adults are active in spring on freshly cut logs.

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Did You Know?

Larvae create distinctive flattened pupal chambers under the bark, lined with coarse wood fibers.