Long-horned Ant-loving Beetle vs Stridulating Passalid

Side-by-side species comparison

Attribute Long-horned Ant-loving Beetle Stridulating Passalid
Scientific Name Claviger longicornis Passalus punctatostriatus
Order Coleoptera Coleoptera
Family Staphylinidae Passalidae
Size 2-3 mm 30-42 mm
Habitat Underground Woodlands
Diet Omnivores Wood Feeders
Regions Central and Southern Europe Central America, South America
Conservation Least Concern Least Concern

Long-horned Ant-loving Beetle

A minute, blind pselaphine rove beetle with elongate antennae relative to its body size. Like its congeners, it is an obligate myrmecophile entirely dependent on host ants for nutrition.

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Did You Know?

The elongate antennae of this blind beetle serve as its primary sensory organs for navigating the total darkness of its underground ant-nest home.

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.