Fungus-beetle
Guides
Litargus balteatus
stored grain fungus beetle
Litargus balteatus, commonly known as the stored grain fungus beetle, is a small beetle in the family Mycetophagidae (hairy fungus beetles). It has been documented across multiple continents including North America, Europe, Oceania, and temperate Asia. As its common name suggests, it is associated with stored grain environments where fungal growth occurs. The species is part of a group of beetles specialized in feeding on fungi, particularly in stored products and related habitats.
Litargus nebulosus
Litargus nebulosus is a species of hairy fungus beetle in the family Mycetophagidae, described by LeConte in 1856. It belongs to the subgenus Alitargus within the genus Litargus. The species is known from North America, with records from the United States. Mycetophagidae beetles are typically associated with fungal substrates, though specific ecological details for this species remain limited in available sources.
Loberus aeratus
Loberus aeratus is a species of pleasing fungus beetle in the family Erotylidae, described by Bruce in 1953. The species is known from North America. Members of the genus Loberus are generally associated with fungal substrates. Only one observation has been recorded on iNaturalist, suggesting it may be rarely encountered or underreported.
Mycetophagus distinctus
hairy fungus beetle
Mycetophagus distinctus is a species of hairy fungus beetle in the family Mycetophagidae, described by Hatch in 1962. As a member of this family, it is associated with fungal habitats, though specific ecological details remain poorly documented. The species is known from North America, with records from Canada (Alberta, British Columbia) and the United States.
Mycetophagus flexuosus
hairy fungus beetle
Mycetophagus flexuosus is a hairy fungus beetle in the family Mycetophagidae. The species occurs in North America and has been documented in association with several polypore and gilled fungi. Like other members of its family, it is associated with fungal fruiting bodies.
Mycetophagus melsheimeri
hairy fungus beetle
Mycetophagus melsheimeri is a species of hairy fungus beetle described by LeConte in 1856. It belongs to the family Mycetophagidae, a group of beetles associated with fungal habitats. The species is known from North America, with records primarily from the United States. Limited observational data exist, with only seven records documented on iNaturalist.
Mycetophagus obsoletus
hairy fungus beetle
Mycetophagus obsoletus is a species of hairy fungus beetle in the family Mycetophagidae, described by Melsheimer in 1844. The species is known from North America, with records from the United States. As a member of the Mycetophagidae, it is associated with fungal habitats.
Mycetophagus pini
Mycetophagus pini is a species of hairy fungus beetle in the family Mycetophagidae, described by Ziegler in 1845. The genus Mycetophagus comprises beetles associated with fungal growth on decaying wood. Records indicate this species occurs in North America, specifically the United States. As with other members of its family, it likely inhabits environments where fungi colonize dead or dying wood.
Mycetophagus punctatus
hairy fungus beetle, punctured hairy fungus beetle
Mycetophagus punctatus is a fungus beetle in the family Mycetophagidae, commonly known as the hairy fungus beetle. It occurs throughout North America and is frequently found in human dwellings where damp conditions and decaying organic matter are present. The species is not considered a pest as it does not cause damage to structures or stored products.
Mycetophagus quadriguttatus
spotted hairy fungus beetle, four-spotted fungus beetle
Mycetophagus quadriguttatus is a species of hairy fungus beetle in the family Mycetophagidae. It is known by the common names spotted hairy fungus beetle and four-spotted fungus beetle. The species has a remarkably broad cosmopolitan distribution, occurring across multiple continents including Africa, Australia, Europe, Northern Asia (excluding China), North America, and Southern Asia. As a member of Mycetophagidae, it is associated with fungal habitats, though specific ecological details remain limited in the available literature.
Mychocerinus
Mychocerinus is a small genus of beetles in the family Murmidiidae, established by Ślipiński in 1990. The genus contains two described species: Mychocerinus arizonensis from Arizona and Mychocerinus depressus described by LeConte in 1866. Murmidiidae beetles are small, often found in association with fungi or decaying plant matter. The genus appears to have limited documentation with few observational records.
Neotriphyllus
Neotriphyllus is a genus of hairy fungus beetles in the family Mycetophagidae, described in 2014. It belongs to the tribe Typhaeini within the subfamily Mycetophaginae. The genus was erected based on morphological distinctions from related genera. Very few observations of this genus exist in public databases.
Neotriphyllus confusus
Neotriphyllus confusus is a species of hairy fungus beetle in the family Mycetophagidae, first described by Horn in 1878. The genus Neotriphyllus belongs to the tribe Typhaeini within the subfamily Mycetophaginae. Members of this family are typically associated with fungal substrates. The species is rarely recorded, with only three observations documented on iNaturalist.
Orchesia ornata
Orchesia ornata is a small beetle in the family Melandryidae (false darkling beetles), described by Horn in 1888. It belongs to a genus of beetles typically associated with decaying wood and fungi. Very little published information exists specifically for this species, though its genus is known from forested habitats in North America.
Orthocis punctatus
Pitted Fungus Beetle
Orthocis punctatus is a minute tree-fungus beetle in the family Ciidae. It is native to North America, with records from multiple Canadian provinces including Alberta, British Columbia, and Manitoba. The species is associated with fungal habitats on trees. As with other ciid beetles, it is small-bodied and adapted to life in decaying wood with fungal growth.
Pentaria fuscula
Pentaria fuscula is a small beetle species in the family Scraptiidae, described by LeConte in 1862. The species is known from western North America, with records from British Columbia, Canada. It belongs to the genus Pentaria, which comprises small, inconspicuous beetles often associated with decaying plant matter. Very little published information exists on the specific biology of this species.
Phyllobaenus caeruleipennis
Phyllobaenus caeruleipennis is a species of checkered beetle in the family Cleridae. The species name refers to its blue-winged appearance. Like other members of the genus Phyllobaenus, it is likely associated with fungal habitats and woodland environments where it preys on small arthropods. The species has been documented in the northeastern United States.
Phymaphora californica
Phymaphora californica is a species of handsome fungus beetle in the family Endomychidae, first described by Horn in 1880. It is native to western North America, with confirmed records from British Columbia, Canada. The genus Phymaphora belongs to a family of beetles commonly associated with fungi. Available information on this species is limited, with only 11 observations documented on iNaturalist.
Plesiocis cribrum
Plesiocis cribrum is a small beetle species in the family Ciidae (minute tree-fungus beetles), described by Casey in 1898. It is the sole member of its genus, which is distinguished from other ciid genera by specific morphological features of the elytra and antennae. The species has been documented in western Canada, with records from Alberta, British Columbia, and Manitoba. Like other Ciidae, it is presumed to be associated with fungal decay in wood, though specific ecological details remain poorly documented.
Pseudoholostrophus discolor
Pseudoholostrophus discolor is a species of polypore fungus beetle in the family Tetratomidae, first described by Horn in 1888. It is one of few species in the genus Pseudoholostrophus, which belongs to a small family of beetles associated with fungal fruiting bodies. The species has been documented in eastern North America, with records from Canada including New Brunswick and Québec.
Renodesta
silken fungus beetles
Renodesta is a genus of silken fungus beetles in the family Cryptophagidae, established by Caterino, Leschen & Johnson in 2008. The genus contains two described species: Renodesta ramsdalei and Renodesta stephani. Like other Cryptophagidae, members of this genus are associated with fungal habitats. The genus appears to be poorly documented in field observations.
Rhanidea
Rhanidea is a genus of handsome fungus beetles (family Endomychidae) containing one described species, R. unicolor. The genus was established by Strohecker in 1953 and is classified within the subfamily Leiestinae. As a member of Endomychidae, it is associated with fungal habitats.
Scaphidium quadriguttatum
shining fungus beetle
Scaphidium quadriguttatum is a species of shining fungus beetle first described by Thomas Say in 1823. It belongs to the family Staphylinidae, the largest family of beetles, specifically within the subfamily Scaphidiinae. The species is characterized by its small size and distinctive elytral markings. It has been documented across eastern North America from Canada to the southern United States.
Scaphisoma americanum
Scaphisoma americanum is a small rove beetle in the family Staphylinidae, subfamily Scaphidiinae. The species was described by Löbl in 1987 and is known from scattered records across the eastern and central United States. Members of this genus are typically associated with fungal habitats. Very little specific biological information has been published for this particular species.
Scaphisoma pusillum
Scaphisoma pusillum is a small rove beetle in the family Staphylinidae, subfamily Scaphidiinae. Members of this genus are commonly known as shining fungus beetles. The species was described by J.L. LeConte in 1860 and has been recorded across a broad geographic range in the eastern and central United States.
Symbiotes gibberosus
Symbiotes gibberosus is a small beetle species first described by Lucas in 1846. It belongs to the family Anamorphidae (historically placed in Endomychidae), a group of beetles commonly known as handsome fungus beetles. The species has a notably broad geographic distribution spanning three continents.
Synstrophus repandus
polypore fungus beetle
Synstrophus repandus is a species of polypore fungus beetle in the family Tetratomidae. It was originally described as Eustrophus repandus by Horn in 1888. The species is distributed across North America, with confirmed records from British Columbia, Manitoba, and New Brunswick in Canada. As a member of Tetratomidae, it is associated with fungal habitats, particularly polypore fungi.
Tetratoma concolor
Polypore fungus beetle
Tetratoma concolor is a species of polypore fungus beetle in the family Tetratomidae, described by LeConte in 1879. The species is found in North America, with records from Canada including Alberta, British Columbia, and Manitoba. As a member of Tetratomidae, it is associated with polypore fungi, though specific biological details remain poorly documented.
Tetratoma truncorum
Tetratoma truncorum is a species of polypore fungus beetle in the family Tetratomidae. It is found in North America, with confirmed records from Ontario and Québec in Canada. The species belongs to a small family of beetles associated with fungal habitats.
Thes bergrothi
Ridge-winged Fungus Beetle
Thes bergrothi is a small beetle in the family Latridiidae, commonly known as the Ridge-winged Fungus Beetle. This species is distributed across several Canadian provinces including British Columbia, Manitoba, New Brunswick, Nova Scotia, and Saskatchewan. Like other members of its family, it is associated with fungal habitats.
Toramus chamaeropis
pleasing fungus beetle
Toramus chamaeropis is a species of pleasing fungus beetle in the family Erotylidae. It was described by Schaeffer in 1904. The species is known from North America. Like other members of its family, it is associated with fungal habitats.
Toxidium
Toxidium is a genus of rove beetles in the family Staphylinidae, subfamily Scaphidiinae. The genus was established by John Lawrence LeConte in 1860. Recent taxonomic work has expanded the genus with multiple new species described in 2025, primarily from Brazil. Members of this genus belong to the tribe Scaphisomatini, a group of small beetles often associated with fungal habitats.
Triarthron
Triarthron is a genus of round fungus beetles in the family Leiodidae, established by Märkel in 1840. The genus contains at least two described species: Triarthron maerkelii (the type species) and Triarthron lecontei. These beetles belong to the tribe Sogdini within the subfamily Leiodinae. As members of the Leiodidae, they are likely associated with fungal habitats, though specific ecological details remain poorly documented.
Triplax alachuae
Triplax alachuae is a species of pleasing fungus beetle in the family Erotylidae. It belongs to a genus of small beetles that are strongly associated with fungal fruiting bodies, particularly mushrooms. The species was described by Boyle in 1956. Like other members of Triplax, it is presumed to feed on fungal tissue and to be found in association with decaying mushrooms in forested habitats.
Triplax cuneata
Triplax cuneata is a species of pleasing fungus beetle in the family Erotylidae, described by Boyle in 1954. The genus Triplax comprises small beetles associated with fungi, particularly mushrooms and polypores. T. cuneata has been recorded from western North America including the Canadian provinces of Alberta and British Columbia. Like other members of its genus, it likely inhabits fungal fruiting bodies where it feeds and reproduces.
Triplax errans
Red-winged Triplax
Triplax errans is a species of pleasing fungus beetle in the family Erotylidae. It has been recorded from Central America and North America. Like other members of its genus, it is likely associated with fungal fruiting bodies, though specific ecological details remain poorly documented.
Triplax frontalis
Black-headed pleasing fungus beetle, Black-fronted Triplax
Triplax frontalis is a species of pleasing fungus beetle in the family Erotylidae, commonly known as the black-headed pleasing fungus beetle. It is found in North America. The species belongs to a genus of small beetles that are typically associated with fungi, particularly mushrooms and bracket fungi.
Triplax frosti
pleasing fungus beetle
Triplax frosti is a species of pleasing fungus beetle in the family Erotylidae. It is a small beetle found in North America, with recorded occurrences in Canadian provinces including Alberta, Manitoba, and New Brunswick. Like other members of the genus Triplax, it is associated with fungal habitats.
Triplax macra
pleasing fungus beetle
Triplax macra is a small species of pleasing fungus beetle in the family Erotylidae. The species was described by LeConte in 1854 and is distributed across North America, with records from Canada (Alberta, Manitoba, New Brunswick) and the United States. Like other members of the genus Triplax, it is associated with fungal habitats.
Triplax marcescens
pleasing fungus beetle
Triplax marcescens is a species of pleasing fungus beetle in the family Erotylidae. The species was described by Boyle in 1954. It is found in North America. Like other members of the genus Triplax, it is associated with fungi, though specific ecological details for this species remain poorly documented.
Triplax puncticeps
pleasing fungus beetle
Triplax puncticeps is a small beetle in the pleasing fungus beetle family Erotylidae, found in North America. Like other members of its genus, it is associated with fungi, though specific ecological details for this species remain poorly documented. The species was described by Casey in 1916.
Triplax thoracica
Triplax thoracica is a small pleasing fungus beetle in the family Erotylidae, measuring 3–5.6 mm in length. The species is strongly associated with oyster mushrooms (genus Pleurotus) and has been documented occurring in dense aggregations on fruiting bodies. It occurs across the eastern half of the United States and adjacent Canada.
Triplax wehrlei
pleasing fungus beetle
Triplax wehrlei is a species of pleasing fungus beetle in the family Erotylidae, described by Boyle in 1954. It belongs to a genus of small beetles associated with fungal habitats. The species is documented from Central America and North America, though specific ecological details remain poorly recorded in the available literature. Like other members of Triplax, it is presumed to inhabit mushroom fruiting bodies and related fungal substrates.