Antlike Flower Beetles

Anthicidae

Classification

Pronunciation

How to pronounce Anthicidae: /ænˈθɪsɪdiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Omonadus floralis P1500381a by 
xpda. Used under a CC BY-SA 4.0 license.
Omonadus-formicarius-07-fws by Francisco Welter-Schultes. Used under a CC0 license.
Omonadus-floralis-06-fws by Francisco Welter-Schultes. Used under a CC0 license.
Omonadus floralis (Linnaeus, 1758) by URSchmidt. Used under a CC BY-SA 4.0 license.
Omonadus formicarius (Goeze, 1777) by URSchmidt. Used under a CC BY-SA 4.0 license.
Vacusus vicinus by Meghan Cassidy. Used under a CC BY-SA 4.0 license.

Summary

The Anthicidae family, known as ant-like flower beetles, comprises a diverse group of small beetles that resemble ants. They play important roles in ecosystems as both predators of pests and as pollinators.

Physical Characteristics

Body elongate, ant-like appearance; heads constrict just in front of the pronotum forming a neck, posterior end of pronotum usually narrow; slender legs and antennae; sparsely covered with small hairs (setae).

Identification Tips

Look for reddish or yellow markings; presence of a horn on the pronotum in Notoxinae; size ranges from 1.25 to 18 mm, typically 2 to 12 mm in the northeastern region.

Habitat

Adults are found on flowers and foliage; larvae are typically in soil, leaf litter, rotten wood, under stones, logs or debris, waterbanks, littoral zones, grasslands, and deserts.

Distribution

Widely distributed; over 3,500 species in >100 genera worldwide, with significant representation in North America.

Diet

Adults are omnivorous, consuming small arthropods, pollen, fungi, and a variety of organic materials. Larvae can be omnivorous, predatory, or fungus-eating.

Life Cycle

Life cycle includes a stage where larvae might bore into plant tubers; specifics on developmental stages are not provided.

Predators

Predators may be deterred by the accumulation of cantharidin, a chemical they acquire.

Ecosystem Role

Some species serve as biological control agents by preying on pest eggs or larvae; important in pollination as they are often found on flowers.

Economic Impact

Some species may positively impact agriculture by controlling pest populations, but details are scarce.

Collecting Methods

  • Sweep netting
  • Pitfall trapping
  • Hand collecting on flowers

Preservation Methods

  • Pinning
  • Ethanol storage

Evolution

Earliest members date back to the Early Cretaceous (Barremian) in Lebanese amber.

Misconceptions

Can be mistaken for true ants due to their appearance; not all species are pests or harmful.

Tags

  • beetles
  • Anthicidae
  • insects
  • entomology
  • pollination