Fungus-beetle
Guides
Agathidiini
round fungus beetles
Agathidiini is a tribe of small beetles within the family Leiodidae, commonly known as round fungus beetles. Members are characterized by their association with slime moulds, which serve as their primary food source. The tribe encompasses 11 genera distributed across multiple continents.
Agathidium dubitans
Agathidium dubitans is a species of round fungus beetle in the family Leiodidae, described by Henry Clinton Fall in 1934. The specific epithet "dubitans" is Latin for "doubting," reflecting taxonomic uncertainty at the time of description. Records indicate occurrence in the United States across Arizona, New Mexico, Ohio, Pennsylvania, and Tennessee. The species belongs to the subgenus Revolvens within the genus Agathidium.
Agathidium hamulum
Agathidium hamulum is a species of round fungus beetle in the family Leiodidae, described by Miller and Wheeler in 2005. The specific epithet "hamulum" refers to a small hook, likely describing a morphological feature of this species. Like other members of the genus Agathidium, it is presumed to be associated with fungi and decaying organic matter. The species has been documented in both Canada and the northeastern United States.
Agathidium mollinum
Agathidium mollinum is a species of round fungus beetle in the family Leiodidae, first described by Fall in 1934. It belongs to the subgenus Concinnum within the genus Agathidium. The species occurs in northeastern North America, with records from both Canada and the United States.
Agathidium repentinum
Agathidium repentinum is a species of round fungus beetle in the family Leiodidae, described by Horn in 1880. It is distributed across northern North America, with records from Canada (Alberta, Manitoba, Newfoundland and Labrador, Yukon) and the United States (Alaska, New Hampshire). The specific epithet "repentinum" derives from Latin, possibly referring to sudden or unexpected characteristics. Like other members of the genus, it is presumed to be associated with fungal habitats, though detailed ecological studies are limited.
Agathidium rusticum
Agathidium rusticum is a species of round fungus beetle in the family Leiodidae, described by Fall in 1934. It belongs to the genus Agathidium, a group of small beetles commonly associated with fungal habitats. The species is known from North America, with records from both Canada and the United States.
Anamorphidae
Anamorphidae is a family of small fungus-feeding beetles in the superfamily Coccinelloidea, containing over 175 extant species across approximately 36 genera. The family was separated from Endomychidae by Robertson et al. (2015) based on morphological and molecular evidence. Members are obligate consumers of fungal spores in both adult and larval stages. A distinctive feature of the family is the presence of debris-cloaking behavior in larvae—a unique defensive strategy among Coccinelloidea that has evolved only once in this lineage.
Anchorius
Anchorius is a genus of small beetles in the family Biphyllidae, first described by Casey in 1900. The genus was long known only from North America, with Anchorius lineatus as the sole described species, until the recent description of Anchorius dollyae from Chile extended its range to South America. Members of this genus are distinguished by specific morphological features of the pronotum, ventrites, and male genitalia. The Chilean discovery represents the southernmost record of the genus.
Anchorius lineatus
Anchorius lineatus is a small beetle in the family Biphyllidae, described by Thomas L. Casey in 1900. The species is known from North America, though specific details about its biology and ecology remain poorly documented. Biphyllidae beetles are generally associated with decaying plant matter and fungi, but species-level information for A. lineatus is sparse.
Anisotoma errans
Anisotoma errans is a species of round fungus beetle in the family Leiodidae, described by W. J. Brown in 1937. It is distributed across northern North America, with records from Canada and the northern United States. Like other members of its genus, it is likely associated with fungal habitats.
Anisotoma expolita
Anisotoma expolita is a species of small carrion beetle in the family Leiodidae, described by W. J. Brown in 1937. It belongs to the tribe Anisotomini, a group commonly associated with decaying organic matter and fungal habitats. The species is recorded from several states in the eastern and central United States.
Anisotoma geminata
Anisotoma geminata is a small round fungus beetle in the family Leiodidae, a group specialized for feeding on fungal fruiting bodies. The species was described by Horn in 1880 and occurs across eastern North America, with records spanning from Canada to the southern United States. Like other members of its genus, it is likely associated with decaying fungi in forest habitats.
Anisotoma humeralis
round fungus beetle
Anisotoma humeralis is a species of round fungus beetle in the family Leiodidae. It is distributed across Europe, Northern Asia (excluding China), and North America. The species was first described by A.G. Olivier in 1790. It belongs to a genus of small beetles commonly associated with fungal habitats.
Aphorista vittata
Aphorista vittata is a species of handsome fungus beetle in the family Endomychidae. It has been documented in North America and Southern Asia. As a member of Endomychidae, it belongs to a family commonly associated with fungal habitats.
Atomaria fuscata
silken fungus beetle
Atomaria fuscata is a silken fungus beetle in the family Cryptophagidae. It has a broad distribution spanning Europe, Northern Asia (excluding China), North America, and Southern Asia. As a member of the Cryptophagidae, it is associated with fungal habitats. The species was described by Schönherr in 1808.
Atomaria lewisi
silken fungus beetle
Atomaria lewisi is a species of silken fungus beetle in the family Cryptophagidae. The species was described by Reitter in 1877 and is native to Europe. It belongs to a family commonly associated with fungal habitats.
Atomaria testacea
silken fungus beetle
Atomaria testacea is a species of silken fungus beetle in the family Cryptophagidae. It has a broad geographic distribution spanning Africa, Europe and Northern Asia (excluding China), and North America. The species was described by Stephens in 1830. As a member of the Cryptophagidae, it is associated with fungal habitats, though specific ecological details for this species remain limited in the available literature.
Caenoscelini
Caenoscelini is a tribe of small beetles within the family Cryptophagidae, commonly known as silken fungus beetles. The tribe was established by Casey in 1900 and contains genera characterized by particular morphological features of the antennae and body form. Members of this tribe are associated with fungal habitats, though specific ecological details remain poorly documented. The tribe is part of the subfamily Cryptophaginae and is distinguished from related tribes primarily by structural characteristics of the adult beetles.
Cis americanus
Cis americanus is a species of minute tree-fungus beetle in the family Ciidae. Like other members of this family, it is associated with decaying wood and the fungi that colonize it. The species was described by Mannerheim in 1852 and is known from North America.
Cis chinensis
Cis chinensis is a minute beetle in the family Ciidae (minute tree-fungus beetles), first described from China in 1991. It has become established as an invasive species in Europe, with confirmed populations in Switzerland and Germany. The species is primarily known as a storage pest of commercially dried fungi, but wild populations have been found living on bracket fungi growing on trees in urban environments. Adults exhibit size plasticity in response to temperature, and the species serves as host for specialized parasitoids and phoretic mites.
Cis fuscipes
minute tree-fungus beetle, Darkfooted Cis Beetle
Cis fuscipes is a species of minute tree-fungus beetle in the family Ciidae. It has a broad geographic distribution spanning Australia, the Caribbean, North America, Oceania, and Europe. The species is associated with fungal habitats, typical of ciid beetles that inhabit wood-decaying fungi.
Clypastraea fasciata
minute hooded beetle
Clypastraea fasciata is a species of minute hooded beetle in the family Corylophidae. Adults measure approximately 2 mm in length. The species occurs in North America, with records from Canada (Manitoba, New Brunswick, Ontario) and the United States. Like other members of its genus, it is associated with fungi and mold in rotting wood and under bark on dead trees.
Clypastraea lepida
minute hooded beetle
Clypastraea lepida is a species of minute hooded beetle in the family Corylophidae, first described by LeConte in 1852. It is among the smallest beetles in North America, measuring approximately 2 millimeters in length. The species belongs to a family commonly known as "minute hooded beetles" or "minute fungus beetles," characterized by a distinctive morphological adaptation where the head is concealed beneath a shelf-like projection of the pronotum. Members of the genus Clypastraea are typically associated with fungi and mold in rotting wood and under bark on dead trees.
Colon forceps
Colon forceps is a species of round fungus beetle described by Hatch in 1957. As a member of the genus Colon, it belongs to a group of small beetles associated with fungal habitats. The species is known from multiple provinces and states across Canada and the United States.
Colon hubbardi
Colon hubbardi is a species of round fungus beetle in the family Leiodidae, first described by Horn in 1880. The species occurs across North America with documented records in Canada and the United States. It belongs to the genus Colon, which comprises small beetles associated with fungal habitats. The specific epithet honors an individual named Hubbard, though the namesake is not specified in available sources.
Colon longitorsum
round fungus beetle
Colon longitorsum is a species of round fungus beetle in the family Leiodidae, first described by Peck & Stephan in 1996. It belongs to the genus Colon, a group of small beetles associated with fungal habitats. The species is known from limited records in western North America, specifically California and Oregon. As with other members of Leiodidae, it likely inhabits environments where fungal resources are available.
Colon magnicolle
Colon magnicolle is a species of round fungus beetle in the family Leiodidae, described by Mannerheim in 1853. It is distributed across northern North America, with records from Canada and the northern United States. As a member of the genus Colon, it is associated with fungal habitats, though specific ecological details for this species remain poorly documented.
Colon thoracicum
round fungus beetle
Colon thoracicum is a species of round fungus beetle in the family Leiodidae. It is found in North America, with records from Canada (Ontario, Quebec) and the United States (Alabama, District of Columbia, Illinois, Indiana, Maine, Michigan, Missouri, North Carolina, New Hampshire, Oklahoma, Pennsylvania, Virginia, West Virginia). As a member of the genus Colon, it is associated with fungal habitats.
Cryptophagus laticollis
silken fungus beetle
Cryptophagus laticollis is a silken fungus beetle first described by Hippolyte Lucas in 1849. It belongs to the family Cryptophagidae, a group of small beetles commonly associated with fungal substrates. The species has a broad distribution spanning three continents.
Cryptophagus saginatus
Cryptophagus saginatus is a species of silken fungus beetle in the family Cryptophagidae. The species was described by Sturm in 1845. It has been recorded from both North America and Europe.
Dacne picta
Dacne picta is a small beetle in the family Erotylidae (pleasing fungus beetles). It has been documented as a major pest of cultivated shiitake mushrooms (Lentinula edodes), with laboratory studies demonstrating chemotactic behavioral responses to host odors from all growing stages of the mushroom. The species has a broad geographic distribution spanning North America, Oceania, and Southern Asia.
Dacne quadrimaculata
Four-spotted pleasing fungus beetle
Dacne quadrimaculata is a species of pleasing fungus beetle in the family Erotylidae. It is found in North America, with distribution records from Canada including Manitoba, New Brunswick, and Nova Scotia. The species belongs to a genus associated with fungal habitats, though specific ecological details for this species remain limited in available sources.
Dacnini
Dacnini is a tribe of pleasing fungus beetles (family Erotylidae) established by Gistel in 1848. Members of this tribe are characterized by their association with fungal substrates and exhibit morphological adaptations for this ecological niche. The tribe is part of the subfamily Erotylinae and represents a distinct lineage within the diverse Erotylidae family. Dacnini species are primarily found in forested habitats where fungal resources are abundant.
Danae testacea
handsome fungus beetle
Danae testacea is a species of handsome fungus beetle in the family Endomychidae, distributed across North America. The species was described by Ziegler in 1845 and is known from Canadian provinces including New Brunswick, Nova Scotia, and Ontario. As a member of Endomychidae, it is associated with fungal habitats.
Dasydactylus cnici
Bronze Lizard Beetle
Dasydactylus cnici is a species of pleasing fungus beetle in the family Erotylidae, first described by Schaeffer in 1904. Commonly known as the Bronze Lizard Beetle, this small beetle is known from scattered observations across North and Middle America. It belongs to a genus characterized by lizard-like body form and association with fungal substrates. The species remains poorly documented in scientific literature with limited ecological data available.
Derodontus maculatus
Derodontus maculatus is a species of tooth-necked fungus beetle in the family Derodontidae. It occurs in cooler climate regions of North America, including parts of Canada and the northern United States. The species has been documented in Nova Scotia, Ontario, and Québec. As a member of Derodontidae, it is associated with fungal feeding habits, though specific ecological details for this species remain limited.
Derodontus unidentatus
Derodontus unidentatus is a species of tooth-necked fungus beetle in the family Derodontidae. It was described by Lawrence in 1979. The species is known to occur in North America. Members of Derodontidae are associated with fungal substrates, though specific ecological details for this species remain limited.
Dienerella filum
Common Plaster Beetle
Dienerella filum, known as the common plaster beetle, is a minute fungus beetle in the family Latridiidae. Adults measure 1.2–1.6 mm and are brown in colour. The species has near-cosmopolitan distribution and is strongly associated with human-built environments, particularly damp buildings with mould growth. It is flightless, lacking hind wings, and feeds exclusively on mould hyphae and spores.
Ephistemus globulus
silken fungus beetle
Ephistemus globulus is a small beetle in the family Cryptophagidae, commonly known as silken fungus beetles. The species was first described by Paykull in 1798 under the basionym Dermestes globulus. It is native to Europe and has been recorded from several islands in the Azores archipelago.
Epipocus punctatus
handsome fungus beetle
Epipocus punctatus is a species of handsome fungus beetle in the family Endomychidae. It was described by LeConte in 1854. The species is distributed across Central America and North America. As a member of Endomychidae, it is associated with fungal habitats.
Eustrophopsis ornatus
Eustrophopsis ornatus is a species of beetle in the family Tetratomidae, described by VanDyke in 1928. This species belongs to a small family of beetles sometimes referred to as polypore fungus beetles or false darkling beetles. The genus Eustrophopsis is part of a group of beetles associated with fungal habitats, particularly wood-decaying fungi. Information regarding the specific biology and ecology of this species remains limited in published literature.
Gyrophaena keeni
Gyrophaena keeni is a species of rove beetle in the family Staphylinidae, described by Casey in 1911. It belongs to the subfamily Aleocharinae, a diverse group of small, often fungus-associated beetles. The species has a broad distribution across northern North America, with records spanning from Alaska and Yukon to the northeastern United States. Very few observations exist in citizen science databases, suggesting it may be genuinely uncommon or undercollected.
Hallomenus punctulatus
polypore fungus beetle
Hallomenus punctulatus is a species of polypore fungus beetle in the family Tetratomidae, a group of small beetles associated with fungal substrates. The species was described by LeConte in 1866 and is known from North America. Like other members of its family, it likely develops in association with polypore fungi.
Hydnobius substriatus
Hydnobius substriatus is a species of round fungus beetle in the family Leiodidae, described by John Lawrence LeConte in 1863. It is distributed across northern North America, with records from Canada and the northern United States. As a member of the genus Hydnobius, it is likely associated with fungal habitats, though specific ecological details remain poorly documented.
Hypocoprus tenuis
Hypocoprus tenuis is a species of silken fungus beetle in the family Cryptophagidae. This family is part of the superfamily Cucujoidea and comprises small beetles commonly associated with fungi, mold, and decaying plant matter. The genus Hypocoprus contains few described species, and H. tenuis is among the less documented members of this group. Available information about this species is extremely limited.
Langurites lineatus
Red-shouldered Lizard Beetle
Langurites lineatus, commonly known as the Red-shouldered Lizard Beetle, is a species of pleasing fungus beetle in the family Erotylidae. The species has been recorded across North America, Middle America, and South America. As a member of Erotylidae, it is associated with fungal habitats, though specific ecological details for this species remain limited in published literature.
Latridius minutus
squarenosed fungus beetle, square-nosed fungus beetle
Latridius minutus is a minute brown scavenger beetle in the family Latridiidae, commonly known as the square-nosed fungus beetle. The species is characterized by its small size and association with fungal substrates. Population activity peaks during summer months and declines in winter.
Leiodes appalachiana
Leiodes appalachiana is a species of round fungus beetle described by Baranowski in 1993. The species name references the Appalachian region, where it is primarily distributed. Like other members of the genus Leiodes, it belongs to the family Leiodidae, a group of small beetles associated with fungal habitats.
Leiodes horni
Leiodes horni is a species of round fungus beetle in the family Leiodidae. It is found in western North America, specifically in California and Oregon. The species was described by Hatch in 1929. Like other members of the genus Leiodes, it is associated with fungal habitats.
Leiodes neglecta
Leiodes neglecta is a species of round fungus beetle in the family Leiodidae, described by Baranowski in 1993. It is distributed across northern North America, with records from Canada and the northern United States. As a member of the genus Leiodes, it likely participates in the typical ecological role of round fungus beetles, which are associated with fungal fruiting bodies. The species remains poorly documented in the scientific literature beyond basic taxonomic and distributional records.