ColeopteraChrysomelidae – Leaf Beetles

Triachus cerinus

This record describes Triachus cerinus (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Triachus cerinus - Triachus cerinus
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Cryptocephalinae
Tribe
Cryptocephalini
Genus
Triachus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

This species has been reported from Baccharis halimifolia, Cliftonia monophylla, Cyrilla racemiflora, Ceratiola ericoides, Kalmia, Quercus, Myrica, Ceanothus americanus , and Rhus terebinthifolia . In Puerto Rico, it was taken from flowers of Randia aculeata .

Geographic Range

e. US (e. coast, + AL) / W. Indies State Records: AL, CT, FL, GA, MA, ME, NC, NJ, NY, RI, SC, VA

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Triachus cerinus. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Triachus cerinus (5)

Triachus cerinus - photo 1
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Triachus cerinus - photo 2
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Triachus cerinus - photo 3
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Triachus cerinus - photo 4
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Triachus cerinus - photo 5
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn. Contributors retain copyright over their individual contributions.