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

Family Leiodidae - Round Fungus Beetles

round fungus beetle - Anisotoma unknown Agathidium - male Colon (Myloechus) schwarzi Hatch - Colon schwarzi Agathidium fawcettae Miller & Wheeler - Agathidium fawcettae Agathidium rubellum Fall - Agathidium rubellum Leiodidae, Round Fungus Beetle, lateral - Prionochaeta opaca Strange beetle - Macrohydnobius
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Staphyliniformia)
Superfamily Staphylinoidea (Rove, Carrion and Fungus Beetles)
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, over 350 spp. in >30 genera in our area (incl. >130 spp. in Canada+Alaska) placed in 5 subfamilies(1)(2)(3)(4)
Overview of our faunaTaxa not yet in the guide are marked (*)
Family Leiodidae
Subfamily Coloninae Colon
Subfamily Catopocerinae
Subfamily Leiodinae
Subfamily Cholevinae
Identification
Some European galleries provide samples of the fauna fairly representative of the Holarctic region and give a good idea of what these beetles look like:
Cholevinae and Leiodinae of Germany
Range
Across the continent(1)
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)(1)