ColeopteraHisteridae – Clown Beetles

Euspilotus assimilis

This record describes Euspilotus assimilis (species). Recorded family: Histeridae. Recorded order: Coleoptera.

Identification and Appearance

Euspilotus assimilis - Euspilotus assimilis
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov

Differs from other congeners in the presence of a shallow impression in the anterior angles of the pronotum and a marginal sulcus on the pygidium (interrupted at the middle in the male) One of the commonest eastern histerids

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Histeroidea
Family
Histeridae (Clown Beetles)
Subfamily
Saprininae
Tribe
Euspilotini
Genus
Euspilotus

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

Habitat and Range

Habitat

Wide variety of habitats (forests, grasslands, urban and agricultural lands); one of the most typical carrion-dwelling histerids in the east. Sometimes in dung

Geographic Range

eastern North America (ON-MB to FL-TX)

Additional species information

Species notes from the sources

Etymology: Euspilotus assimilis ( Paykull 1811)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Euspilotus assimilis. 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 Euspilotus assimilis (5)

Euspilotus assimilis - photo 1
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov
Euspilotus assimilis - photo 2
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov
Euspilotus assimilis - photo 3
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov
Euspilotus assimilis - photo 4
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov
Euspilotus assimilis - photo 5
Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov

Photo credits: Contributed by Jeff Gruber; Additional contributions by cotinis , Bbarnd , Mike Quinn , v belov

Frequently Asked Questions About Euspilotus assimilis

What is Euspilotus assimilis?

Euspilotus assimilis is a species in the family Histeridae, within the order Coleoptera.

How big is Euspilotus assimilis?

3.5-5.5 mm

How do you identify Euspilotus assimilis?

Differs from other congeners in the presence of a shallow impression in the anterior angles of the pronotum and a marginal sulcus on the pygidium (interrupted at the middle in the male)

Where is Euspilotus assimilis found?
FeatureDetails
HabitatWide variety of habitats (forests, grasslands, urban and agricultural lands); one of the most typical carrion-dwelling histerids in the east. Sometimes in dung
Rangeeastern North America (ON-MB to FL-TX)

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

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