Trichochrous

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Cleroidea
Family: Melyridae
Subfamily: Dasytinae
Tribe: Listrini
Genus: Trichochrous

Pronunciation

How to pronounce Trichochrous: /ˈtrɪkəˌkroʊs/

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Summary

Trichochrous is a genus within the family Melyridae, known for its elongate and brightly colored beetles. Most are predaceous but often found on flowers, playing a role in ecosystems primarily as predators and possible pollinators.

Physical Characteristics

Most are elongate-oval, soft-bodied beetles 10 mm long or less. Many are brightly patterned in black and brown, yellow, or red. Some species have peculiar orange structures along the sides of the abdomen that may be everted and saclike or withdrawn.

Identification Tips

Look for elongated and colorful patterns, particularly in common North American species. Some species may exhibit enlarged basal antennomeres.

Habitat

Various habitats, commonly found on flowers; largest diversity occurs in tropical rainforests.

Distribution

Over 100 genera worldwide, with approximately 520 species in North America and 16 genera in Europe. The genus Trichochrous has a notable presence in the western United States.

Diet

Most adults and larvae are predaceous, but many are found frequently on flowers, implying a possible nectar-feeding behavior as well.

Ecosystem Role

Adults and larvae are predaceous, helping control populations of other insects. They are also involved in pollination when found on flowers.

Evolution

The oldest fossils of the family date back to the late Middle Jurassic. The oldest known member of Dasytinae is Protodasytes from early Late Cretaceous amber.