Clown beetle vs Hister beetle

Acritus komai compared with Acritus nigricornis

Key Differences

Clown beetle is Not Evaluated while Hister beetle is Least Concern.

Taxonomic Classification

Rank	Clown beetle	Hister beetle
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Arthropoda (สัตว์ขาปล้อง)	Arthropoda (สัตว์ขาปล้อง)
Class same	Insecta (แมลง)	Insecta (แมลง)
Order same	Coleoptera (อันดับด้วง)	Coleoptera (อันดับด้วง)
Family same	Histeridae	Histeridae
Genus same	Acritus	Acritus
Species	Acritus komai	Acritus nigricornis

Evolutionary Relationship

Clown beetle and Hister beetle share a common ancestor at the Genus level: Acritus.

ดู: Genus: Acritus

Conservation Status

Clown beetle

NE — Not Evaluated

Hister beetle

LC — Least Concern

Physical Characteristics

Attribute	Clown beetle	Hister beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clown beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Asia (Indonesia), Europe (4 countries), and North America (Canada, United States).

Hister beetle

Habitat

Inhabits deserts and xeric shrublands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Tajikistan), Europe (6 countries), North America (Canada, United States), and South America (Argentina).

Clown beetle

Acritus komai is a minute histerid beetle (family Histeridae) belonging to the subfamily Abraeinae. Members of this subfamily are among the smallest beetles in the family, typically measuring less than 2 mm in length. Like all histerids, A. komai is presumed to be predatory, likely feeding on mites, nematodes, or small dipteran eggs and larvae in decaying organic substrates. The genus Acritus comprises numerous species distributed across multiple continents, and members are often associated with rotting wood, dung, carrion, and fungal fruiting bodies. A. komai appears to have a cosmopolitan or wide distribution, possibly facilitated by passive transport in organic material. The species has not been formally assessed by the IUCN, reflecting the general lack of conservation data for many microhabitat-specialist invertebrates. Its extremely small size and cryptic habits make field observation and population assessment challenging. Systematic studies of this genus rely primarily on detailed morphological examination of antennal club structure, elytral striae, and prosternal keels, which are important diagnostic characters in Histeridae taxonomy.