Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

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Calendar

Upcoming Events

National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27


Family Leiodidae - Round Fungus Beetles

Representative Images

Anogdus dissimilis Blatchley - Anogdus dissimilis Agathidium - male Agathidium ? - Agathidium Leiodinae - Agathidium Catopocerus? - Catopocerus politus Nemadus triangulum - Sciodrepoides Tritoma humeralis or biguttatus? (1) - Anisotoma Catops basilaris - male

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Staphyliniformia)
Superfamily Staphylinoidea
Family Leiodidae (Round Fungus Beetles)

Other Common Names

Small Carrion Beetles, Mammal Nest Beetles

Synonyms and other taxonomic changes

Anisotomidae, Catopidae, Cholevidae, Colonidae, Leptinidae, Leptodiridae, Platypsyllidae

Explanation of Names

Leiodidae Fleming 1821

Numbers

~3500 spp. in ~340 genera worldwide, 382 species in 38 genera in our area(1) (incl. >130 spp. in Canada+Alaska) placed in 5 subfamilies(2)(3)(4)(5)
Overview of our faunaTaxa not yet in the guide are marked (*)
Family Leiodidae
Subfamily Catopocerinae
Subfamily Leiodinae
Subfamily Cholevinae

Identification

A small eighth antennomere is characteristic(6)

Some European galleries provide samples of the fauna fairly representative of the Holarctic region: Leiodidae DeutschlandsPolish faunaCholevinae and Leiodinae of Germany

Range

worldwide & across NA(2)

Habitat

litter, various decayed matter, vertebrate and ant nests/burrows (some even ectoparasites of mammals), caves/caverns, various fungi (incl. subterranean ones) and slime molds (Myxomycetes)(2)

Print References

(7)