Minute Beetles

Clambidae

Classification

Pronunciation

How to pronounce Clambidae: /klæmˈbaɪdiː/

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Images

Summary

Clambidae, known as minute beetles or fringe-winged beetles, are small beetles ranging from 0.7 to 2 mm in length, with some species capable of rolling into a ball. They feed primarily on decaying plant material and fungi and are found globally, except in Antarctica. The family is comprised of multiple genera, with a rich fossil history.

Physical Characteristics

Body length 0.7 to 2 mm; minute, oval to convex shape; capable of rolling into a ball; head strongly deflexed; divided eyes; large metacoxal plate; with dense decumbent setae; tarsi 4-4-4.

Identification Tips

Look for small, flattened bodies with hairy or scaly textures, and margins of the wings lined with long hairs.

Habitat

Commonly found on decaying plant material and fungi worldwide, except Antarctica.

Distribution

Found worldwide on every continent except Antarctica. Best known genera: Clambus (widespread), Sphaerothorax (Australia and New Zealand), Acalyptomerus (circumtropical).

Diet

Primarily feed on fungi and decaying plant material.

Ecosystem Role

Play a role in breaking down decaying matter and recycling nutrients.

Evolution

The family has a long fossil record, with genera identifiable from 99 million year old Burmese amber. The oldest records are from the Early Cretaceous (Barremian) aged Lebanese amber.

Similar Taxa

Misconceptions

They may be confused with other small beetles but can be identified by their unique body shape and wing margins.

Tags

  • Clambidae
  • Minute Beetles
  • Beetles
  • Entomology
  • Insects