ColeopteraHisteridae – Clown Beetles2 data sources

Atholus bimaculatus

This record describes Atholus bimaculatus (species). Recorded family: Histeridae. Recorded order: Coleoptera.

Identification and Appearance

Atholus bimaculatus - Atholus bimaculatus
Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

black elytron with a large lateroposterior reddish area and a depression near each anterior angle of the pronotum Det. Jeff Gruber, 2007 earliest record in our area: 1825

Wikipedia reference for Atholus bimaculatus: https://en.wikipedia.org/wiki/Atholus_bimaculatus.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Histeroidea
Family
Histeridae (Clown Beetles)
Subfamily
Histerinae
Tribe
Histerini
Genus
Atholus

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

Habitat and Range

Habitat

dung/feces & various decaying plant matter

Geographic Range

adventive across the US & so. CAN - Map , native to, and widespread across the Palaearctic, now almost cosmopolitan

Additional species information

Species notes from the sources

Etymology: Atholus bimaculatus (Linnaeus 1758)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Atholus bimaculatus. 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 Atholus bimaculatus (3)

Atholus bimaculatus - photo 1
Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Atholus bimaculatus - photo 2
Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Atholus bimaculatus - photo 3
Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Photo credits: Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Frequently Asked Questions About Atholus bimaculatus

What is Atholus bimaculatus?

Atholus bimaculatus is a species in the family Histeridae, within the order Coleoptera.

How big is Atholus bimaculatus?

4.0-4.8 mm

How do you identify Atholus bimaculatus?

black elytron with a large lateroposterior reddish area and a depression near each anterior angle of the pronotum Det. Jeff Gruber, 2007

Where is Atholus bimaculatus found?
FeatureDetails
Habitatdung/feces & various decaying plant matter
Rangeadventive across the US & so. CAN - Map , native to, and widespread across the Palaearctic, now almost cosmopolitan

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

Photo credits: Contributed by Jeff Gruber; Additional contributions by Beatriz Moisset , Mike Quinn , v belov. Contributors retain copyright over their individual contributions.