Swollen Fungus Beetle, minute brown scavenger beetle
Cartodere nodifer is a minute beetle in the family Latridiidae, commonly known as the Swollen Fungus Beetle. The species was originally described from Europe but has become cosmopolitan through human-mediated dispersal. It is now established on multiple continents including Australia, New Zealand, and the Azores archipelago. The species belongs to a group commonly called 'minute brown scavenger beetles' due to their small size and ecological habits.
tortoise and leaf-mining beetles, tortoise beetles, hispine beetles
Cassidinae is a large subfamily of leaf beetles (Chrysomelidae) comprising over 125 genera and approximately 3,000 species worldwide, with greatest diversity in the Neotropics. The subfamily encompasses two historically recognized groups: the 'cassidoids' or tortoise beetles, characterized by expanded pronotal and elytral margins that form a protective shield over the body, and the 'hispoids' or leaf-mining beetles, typically more elongated with parallel-sided bodies. Members exhibit remarkable morphological diversity, with some species displaying metallic coloration and the ability to change color through water movements within the translucent cuticle. The subfamily is notable for complex larval defensive adaptations including fecal shield construction and cycloalexic behavior, as well as the independent evolution of subsociality with paternal care in at least two lineages.
tortoise beetles
Cassidini is a large tribe of tortoise beetles within the leaf beetle subfamily Cassidinae, comprising approximately 40 genera and 600 species worldwide. Members are commonly known as "tortoise beetles" due to their domed, shield-like appearance. A 2017 phylogenetic analysis based on morphological characters found Cassidini to be nonmonophyletic with respect to Aspidimorphini, leading to the formal synonymization of the latter with Cassidini; the same study suggested Ischyrosonychini should also be included. Larvae construct distinctive defensive shields from exuviae and faeces using a telescopic anus, a trait that may represent a synapomorphy for the crown-clade Cassidinae.
Colima Baridine Weevil
Catapastinus caseyi is a weevil species in the family Curculionidae, described by G.C. Champion in 1909. It is provisionally accepted in taxonomic databases and has been recorded from Mexico (Colima region, based on common name reference). The species belongs to the large and diverse weevil family Curculionidae, which contains numerous plant-feeding beetles. Very little specific biological information is available for this particular species in the accessible literature.
flower weevils
Catapastus is a genus of flower weevils in the family Curculionidae, comprising nine described species. The genus was established by Thomas Lincoln Casey in 1892. Species are distributed across North America, with records from the United States and Mexico. Members are small beetles associated with flowers, consistent with the common name for the group.
Cathartosilvanus vulgaris is a species of silvanid flat bark beetle in the family Silvanidae. Members of this genus are associated with decomposing plant material and are frequently found under bark, in rotting wood, and in similar moist, concealed habitats. The species is part of a group of beetles commonly known as flat bark beetles due to their dorsoventrally flattened body form, which allows them to exploit narrow spaces under bark and in other tight crevices. Specific biological details for this species remain poorly documented in the available literature.
Cathormiocerus curvipes is a species of broad-nosed weevil in the family Curculionidae, subfamily Entiminae. It was described by Thomas Vernon Wollaston in 1854. The species is endemic to the Azores archipelago in the North Atlantic, with records from multiple islands including São Miguel, Faial, Flores, São Jorge, and Corvo. As a member of the Trachyphloeini tribe, it belongs to a group of flightless weevils often associated with soil-dwelling habits and cryptic lifestyles.
Catopocerus politus is a species of small carrion beetle in the family Leiodidae, first described by Motschulsky in 1870. It belongs to the subfamily Catopocerinae, a group of beetles primarily associated with decomposing organic matter. The species has been recorded from several eastern U.S. states including Maryland, Virginia, Pennsylvania, North Carolina, West Virginia, and Washington D.C.
Catops simplex is a species of small carrion beetle in the family Leiodidae, first described by Thomas Say in 1825. It belongs to the subfamily Cholevinae, a group commonly known as small carrion beetles. The species has been recorded across much of North America, with distribution records from Canada and the United States.
Caulophilus dubius is a species of true weevil in the beetle family Curculionidae. It was described by Horn in 1873. The species has been synonymized under Cossonus dubius in some taxonomic treatments. It belongs to the genus Caulophilus, which comprises weevils characterized by their elongated snouts and association with woody plants.
Celina is a genus of small predaceous diving beetles (family Dytiscidae) first described by Aubé in 1837. These aquatic beetles belong to the subfamily Hydroporinae and tribe Methlini. The genus occurs primarily in the Neotropical region, with records from northern South America including Colombia. Members of this genus are aquatic predators inhabiting freshwater environments.
Celina angustata is a species of predaceous diving beetle in the family Dytiscidae. The species was described by Aubé in 1838. It occurs across North and South America.
Celina grossula is a species of predaceous diving beetle (family Dytiscidae) described by John Lawrence LeConte in 1863. It belongs to the subfamily Hydroporinae and tribe Methlini. The genus Celina comprises small to minute diving beetles that inhabit aquatic environments. Information regarding the specific biology and ecology of C. grossula remains limited in the available literature.
Celina imitatrix is a predaceous diving beetle in the family Dytiscidae, described by Young in 1979. The species is known from North America and the Neotropics. Like other members of the genus Celina, it is aquatic and predatory. Very few specific observations or studies have been published for this particular species.
Celina occidentalis is a predaceous diving beetle described by Young in 1979. It belongs to the family Dytiscidae, a group of aquatic beetles adapted for underwater predation. The species is known from North America and the Neotropics, though specific details about its biology remain limited in published literature.
Long-necked Phengodid
A species of glowworm beetle in the family Phengodidae, described by Wittmer in 1976. The species epithet "longicollis" refers to its elongated neck (prothorax). Like other phengodids, adults are likely bioluminescent, though specific details of its biology remain poorly documented.
Pale South Texas Glowworm
Cenophengus pallidus is a species of glowworm beetle in the family Phengodidae. It was described by Schaeffer in 1904 and is found in North America. The species is commonly known as the Pale South Texas Glowworm. Like other phengodid beetles, adults are bioluminescent, with females and larvae typically exhibiting the characteristic glowworm luminescence more prominently than males.
Centrinopus helvinus is a species of flower weevil in the family Curculionidae. It is native to North America. The species was described by Thomas Lincoln Casey in 1889. As a member of the flower weevil group, it is associated with flowering plants, though specific ecological details remain poorly documented.
flower longhorn
Centrodera autumnata is a species of flower longhorn beetle in the family Cerambycidae, described by Leech in 1963. It belongs to the subfamily Lepturinae, a group commonly known as flower longhorns due to their frequent association with flowers. The species is native to North America. As a member of the genus Centrodera, it shares characteristics with other species in this group of moderate-sized longhorn beetles.
Cephalocyclus luteolus is a species of scarab beetle in the family Scarabaeidae, subfamily Aphodiinae. It is native to the southwestern United States, with confirmed records from Arizona, New Mexico, Texas, and Utah. The species was described by George Henry Horn in 1887. Like other members of the genus Cephalocyclus, it belongs to the dung beetle tribe Aphodiini, though specific ecological details remain poorly documented.
false longhorn beetle
Cephaloon ungulare is a species of false longhorn beetle in the family Stenotrachelidae, a group of beetles historically placed among longhorn beetles but now recognized as a distinct family. It was described by John Lawrence LeConte in 1874. The species is known from eastern North America, with records from Labrador, New Brunswick, and Newfoundland in Canada. As a member of Stenotrachelidae, it shares the family's characteristic elongated body form and relatively long antennae, though generally shorter than those of true longhorn beetles (Cerambycidae).
false longhorn beetle
Cephaloon vandykei is a species of false longhorn beetle in the family Stenotrachelidae. The species was described by Hopping & Hopping in 1934. It is found in North America. Members of this family are commonly referred to as false longhorn beetles due to their superficial resemblance to true longhorn beetles (Cerambycidae).
Cephenniini is a tribe of minute rove beetles within the subfamily Scydmaeninae (Staphylinidae). The tribe was first described by Reitter in 1882 and contains the genera Cephennodes and Cephennomicrus. These beetles are distributed across the Afrotropical, Oriental, and Australasian regions, with records from Africa, Madagascar, Indian Ocean islands, Southeast Asia, China, Taiwan, Japan, Papua New Guinea, Australia, and Pacific islands. Recent taxonomic work has documented first records in South Africa, Christmas Island, and the Philippines.
Cephennium aridum is a species of minute rove beetle in the family Staphylinidae, subfamily Scydmaeninae. It was described in 2009 from California and is distinguished by its association with arid habitats. The specific epithet "aridum" refers to the dry conditions of its type locality. Members of this genus are among the smallest beetles, often less than 2 mm in length.
Cephennodes corporosus is a species of rove beetle in the family Staphylinidae, subfamily Scydmaeninae. Originally described by John Lawrence LeConte in 1852 under the genus Sphex (a wasp genus), this species has since been reclassified to the beetle genus Cephennodes. It belongs to a group of minute rove beetles, with most members of this subfamily measuring less than 2 mm in length. The species is known from scattered records in the eastern and central United States.
Longhorn beetles, Long-horned beetles, Longicorn beetles
Cerambycidae is a large family of beetles comprising approximately 35,000 described species worldwide. Members are characterized by exceptionally long antennae, often exceeding body length, which gives rise to their common name. The family exhibits diverse ecological strategies, with larvae predominantly developing in woody tissues and adults showing varied feeding habits including pollen, nectar, and foliage consumption. Many species are important ecological decomposers of dead and dying wood, while some are significant forest pests.
water scavenger beetles
Cercyon is a genus of small water scavenger beetles in the family Hydrophilidae, subfamily Sphaeridiinae, with at least 50 described species worldwide. The genus is predominantly terrestrial despite its family name, with species frequently associated with decaying organic matter and feces. Species occur across multiple continents including North America, the Caribbean, Europe, Asia, and Africa, with some species being adventive (introduced) outside their native ranges. Taxonomic studies have revealed cryptic species complexes distinguishable only by male genitalia and DNA sequences.
Cercyon floridanus is a small water scavenger beetle in the family Hydrophilidae, first described by George Henry Horn in 1890. The species belongs to the diverse genus Cercyon, which contains numerous small hydrophilid beetles associated with moist or aquatic habitats. It is recorded from the southeastern United States and the Caribbean.
Cercyon herceus is a small water scavenger beetle in the family Hydrophilidae, described by Smetana in 1978. The species occurs across much of North America, with records from Canada and the United States. Two subspecies are recognized: C. h. herceus and C. h. frigidus. Like other members of the genus, it likely inhabits moist, decomposing organic matter near water sources.
Cercyon impressus is a species of water scavenger beetle in the family Hydrophilidae. The species has a broad distribution spanning Europe, Northern Asia (excluding China), and North America. It belongs to a genus of small beetles commonly associated with moist or aquatic environments.
Cercyon limbatus is a small water scavenger beetle in the family Hydrophilidae, first described by Mannerheim in 1843. It belongs to the genus Cercyon, a diverse group of beetles commonly found in moist or aquatic environments. The species has been documented across much of North America, with records from Canada and the western and northern United States.
Cercyon littoralis is a small water scavenger beetle in the family Hydrophilidae. It has a broad distribution across the Holarctic region, occurring in Europe, Northern Asia (excluding China), and North America. The species has also been introduced to oceanic islands including the Azores and Tristan da Cunha.
Cercyon mendax is a small water scavenger beetle in the family Hydrophilidae. It inhabits moist or aquatic environments in North America, where it contributes to nutrient cycling as a detritivore. The species was described by Smetana in 1978 and remains poorly known in terms of detailed biology.
Cercyon unipunctatus is a small water scavenger beetle in the family Hydrophilidae, widespread across the Holarctic region. It is one of the most broadly distributed species in the genus Cercyon, occurring naturally across Europe, Northern Asia, and introduced to North America. The species was first described by Linnaeus in 1758 and belongs to the C. unipunctatus species group, which contains multiple closely related taxa in Asia. It is primarily associated with moist, decomposing organic matter.
Cercyon variegatus is a small water scavenger beetle in the family Hydrophilidae, first described by Sharp in 1882. The species has a broad distribution across the Americas, ranging from the southeastern United States through Central America to South America. Like other members of the genus Cercyon, it is associated with moist or aquatic environments where it contributes to decomposition processes. The specific epithet 'variegatus' refers to variable or mottled coloration, though detailed morphological descriptions are limited in available sources.
rare click beetles
Cerophytum is a genus of rare click beetles in the family Cerophytidae, established by Latreille in 1809. The genus contains at least four described species distributed across the Holarctic region (Europe, Asia, and North America). Members are characterized by their clicking mechanism, which represents convergent evolution with the true click beetles (Elateridae). A fifth species, Cerophytum lii, was described in 2025 from Yunnan Province, China, representing the first record of the family in that country.
Ceutorhynchini is a tribe of true weevils within the subfamily Baridinae of the family Curculionidae. Members of this tribe are small to medium-sized weevils with characteristic rostrate heads. The tribe contains numerous genera distributed across multiple continents, with documented diversity in North America, the Palearctic region, tropical Africa, and Asia. Several subtribes have been recognized within Ceutorhynchini, including Oxyonychina.
minute seed weevil
Ceutorhynchus anthonomoides is a minute seed weevil in the family Curculionidae, first described by Dietz in 1896. The species is known from North America. It belongs to a large genus of weevils commonly associated with plants in the mustard family (Brassicaceae), though specific host associations for this species remain unconfirmed. Available information is limited to basic taxonomic and distributional data.
minute seed weevil
Ceutorhynchus semirufus is a small weevil species in the family Curculionidae, described by LeConte in 1876. It is distributed across North America with records from Alberta, New Brunswick, Newfoundland, and other regions. As a member of the genus Ceutorhynchus, it belongs to a group of seed-feeding weevils, though specific biological details for this species remain poorly documented.
Ceutorhynchus zimmermannii is a species of weevil in the family Curculionidae, first described by Gyllenhal in 1837. The species is recorded from central Canada, specifically the provinces of Manitoba, Ontario, and Saskatchewan. As a member of the large genus Ceutorhynchus, it belongs to a group of weevils commonly known as cabbage seedpod weevils or stem weevils, many of which are associated with brassicaceous host plants. Available information on this species is limited, with no observations recorded on iNaturalist and minimal published biological data.
Chaetocnema aequabilis is a flea beetle in the family Chrysomelidae, described by R. White in 1996 as part of his revision of the genus Chaetocnema in North America. As a member of the tribe Alticini, it possesses enlarged hind femora adapted for jumping. The species is one of approximately 30 Chaetocnema species recorded from North America north of Mexico.
Chaetocnema irregularis is a species of flea beetle in the family Chrysomelidae. It is native to North America, with documented records from western Canada including Alberta, British Columbia, and Manitoba. Like other members of the genus Chaetocnema, it belongs to the subfamily Alticinae and possesses the enlarged hind femora characteristic of flea beetles that enable jumping locomotion.
pill beetle
Chaetophora spinosa is a species of pill beetle in the family Byrrhidae, distributed across Europe, Northern Asia (excluding China), and North America. The species belongs to a family commonly known for their rounded, compact body form and association with moist habitats. Pill beetles (Byrrhidae) are named for their ability to roll into a ball when disturbed, a defensive behavior shared with other beetle families.
Chalcodermus martini is a species of true weevil in the beetle family Curculionidae, described by Van Dyke in 1929. It is known from North America. As a member of the genus Chalcodermus, it belongs to a group of weevils within the diverse Curculionidae family. Very little specific information has been published about the biology or ecology of this particular species.
lined flat bark beetle
Charaphloeus adustus is a species of lined flat bark beetle in the family Laemophloeidae, described by LeConte in 1854. The species is known from North America with confirmed records in the Canadian provinces of Manitoba, Ontario, and Québec. Like other members of Laemophloeidae, it is associated with bark habitats. The genus Charaphloeus contains multiple species that are morphologically similar and require careful examination for identification.
lined flat bark beetle
Charaphloeus convexulus is a species of lined flat bark beetle in the family Laemophloeidae, a group of small beetles adapted for living under bark. The species is found in North America, with records from Canada (New Brunswick, Nova Scotia, and Ontario). As with other members of Laemophloeidae, it is presumed to inhabit dead or dying wood where it likely feeds on fungal hyphae or other microorganisms, though specific biological details remain poorly documented.
lined flat bark beetle
Charaphloeus flavosignatus is a species of lined flat bark beetle in the family Laemophloeidae, a group characterized by their dorsoventrally flattened bodies adapted for living under bark. The species was described by Schäffer in 1910. It is known from North America. Like other members of its family, it likely inhabits dead or dying wood where it feeds on fungal hyphae.
Charaphloeus unnamed refers to an undescribed species within the genus Charaphloeus, a group of small, flattened beetles in the family Laemophloeidae (lined flat bark beetles). The genus Charaphloeus contains multiple species, some of which remain formally undescribed in scientific literature. These beetles are typically associated with dead or decaying wood and bark habitats. The specific epithet "unnamed" indicates this taxon has been recognized as distinct but has not yet received a formal scientific description or species name.
A small rove beetle species in the subfamily Phloeocharinae, described from Arizona in 1972. Like other members of Staphylinidae, it exhibits the characteristic short elytra that leave much of the abdomen exposed. The genus Charhyphus contains few described species, and C. arizonensis appears restricted to the southwestern United States.
Charidotella bifossulata is a species of tortoise beetle in the family Chrysomelidae, characterized by the distinctive shield-like body form typical of this group. The species was described by Boheman in 1855. It is distributed across Central America and North America. Like other members of Charidotella, it likely feeds on plant foliage, though specific host associations remain poorly documented.