Xyletininae

Pronunciation

How to pronounce Xyletininae: /saɪˌlɛtɪˈnaɪ/

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Summary

Xyletininae is a diverse subfamily of beetles known as death-watch and spider beetles, comprising approximately 13 genera and over 170 described species. They play an essential role in decomposition and nutrient recycling within their habitats.

Physical Characteristics

Body cylindrical to short cylindrical; head retracted below pronotum; antennae usually serrate, sometimes with three terminal segments enlarged; legs not retracted into grooves of the ventral surface.

Identification Tips

Look for the distinctive cylindrical body shape and the retracted head and antennae when at rest.

Habitat

World-wide, inhabiting various environments.

Distribution

Found globally, though specific species may have localized distributions.

Diet

Primarily detritivores, feeding on decaying organic matter and sometimes fungi.

Life Cycle

Lifecycle includes egg, larval, pupal, and adult stages; specific details vary by species.

Reproduction

Reproductive methods involve laying eggs in suitable substrates, often decaying wood or organic matter.

Ecosystem Role

Decomposers that contribute to nutrient recycling in their ecosystems.

Economic Impact

Some species may be pests in stored products; however, their overall impact varies.

Collecting Methods

• Sweep netting
• Hand collection

Preservation Methods

• Ethanol preservation
• Pinning for dry collection

Evolution

Formerly considered part of Anobiidae, now classified under Ptinidae, reflecting evolutionary relationships among beetles.

Similar Taxa

• Anobiinae
• Bostrichinae

Misconceptions

Often confused with other small beetles, particularly those in similar ecological niches.

Tags

• Beetles
• Bostrichoidea
• Xyletininae
• Coleoptera
• Insecta