Sesaspis is a genus of beetles in the family Zopheridae. The genus is part of the diverse beetle fauna of the order Coleoptera. Species within this genus are characterized by features typical of the Zopheridae family. Based on iNaturalist records, the genus has been documented in at least 202 observations.
Sibariops concinnus is a species of weevil in the family Curculionidae. The genus Sibariops belongs to the hyperdiverse weevil family, which contains more described species than any other beetle family. Information regarding the specific biology, distribution, and natural history of S. concinnus remains extremely limited in published literature.
Silis spathulata is a species of soldier beetle in the family Cantharidae, described by LeConte in 1881. It belongs to a genus of soft-bodied beetles commonly associated with flowers and vegetation. Records indicate presence in parts of North America, particularly eastern Canada.
Silvanoprus scuticollis is a silvanid flat bark beetle with a remarkably broad distribution spanning six continents. The species was described by Walker in 1859 and belongs to the family Silvanidae, a group of beetles commonly associated with stored products and decaying plant material. Its presence across tropical, subtropical, and temperate regions suggests either strong dispersal capabilities or human-mediated spread through trade.
dry bark beetle
Sosylus costatus is a species of dry bark beetle in the family Bothrideridae, described by LeConte in 1863. It is found in North America. The family Bothrideridae, sometimes referred to as dry bark beetles, consists of small beetles often associated with dead or dying wood and other insects.
polite beetle, American False Clown Beetle
Sphaerites politus is a species of false clown beetle in the family Sphaeritidae, a small family of beetles closely related to clown beetles (Histeridae). The species was described by Mannerheim in 1846 and occurs in western North America from Alaska south through western Canada and the western United States. It is one of only two species in the genus Sphaerites found in North America.
Spilotus quadripustulatus is a beetle species in the family Melandryidae, a group commonly known as false darkling beetles. The species was described by Melsheimer in 1846. It is known from eastern Canada, with documented occurrences in New Brunswick, Nova Scotia, and Quebec. The specific epithet 'quadripustulatus' refers to four spots or markings, likely describing a distinctive pattern on the elytra.
Texas Square-necked Statira
Statira erina is a small darkling beetle in the family Tenebrionidae, subfamily Lagriinae. First described by Parsons in 1975, this species is commonly known as the Texas Square-necked Statira. The genus Statira was formerly placed in the family Lagriidae before its assimilation into Tenebrionidae. Members of this genus are characterized by their aberrant body form among darkling beetles, with elongated bodies and long-jointed appendages that distinguish them from the more typical robust, slow-moving darkling beetles like Eleodes.
Statira nigromaculata is a species of darkling beetle in the family Tenebrionidae, originally described by Champion in 1889. It belongs to the subfamily Lagriinae, a group formerly treated as the separate family Lagriidae. The genus Statira is characterized by elongated bodies and relatively long antennae compared to other darkling beetles. This species is part of a diverse tropical beetle fauna with limited published ecological information.
Statira opacicollis is a species of darkling beetle in the family Tenebrionidae, specifically placed in the subfamily Lagriinae (formerly treated as the separate family Lagriidae). The genus Statira represents one of several groups of beetles recently assimilated into Tenebrionidae that do not resemble 'classic' darkling beetles. Species in this genus exhibit elongated bodies with long-jointed antennae, distinguishing them from more familiar tenebrionid forms.
Stenoptochus is a genus of broad-nosed weevils in the family Curculionidae, established by Casey in 1888. The genus contains at least two described species: S. inconstans and S. vanduzeei. These weevils belong to the subfamily Entiminae and tribe Peritelini. As with other broad-nosed weevils, they possess a short, broad rostrum rather than the elongated snout characteristic of many curculionids.
Stenotothorax cribratulus is a species of scarab beetle in the subfamily Aphodiinae, originally described by Schmidt in 1917. It is a small dung beetle native to the Pacific Northwest region of North America. The species belongs to a genus characterized by distinctive body sculpturing. Records indicate it occurs in forested mountainous regions.
Brassy False Long-horned Beetle
Stenotrachelus aeneus is a species of false long-horned beetle in the family Stenotrachelidae. The species was originally described by Fabricius in 1787 under the basionym Dryops aeneus. It is known from northern regions of North America including Alberta, British Columbia, and Labrador in Canada.
Stichtoptychus is a genus of small beetles in the family Ptinidae (formerly included in Anobiidae). The genus was established by Fall in 1905 and contains approximately 13 described species. These beetles belong to the group commonly known as deathwatch beetles or furniture beetles, though specific ecological details for this genus remain poorly documented.
Stictoleptura is a genus of longhorn beetles (Cerambycidae) distributed across the Holarctic region, with species in Europe, Asia, and North America. The genus includes medium-sized beetles typically associated with broadleaved woodland habitats. The first genome sequence for the genus was published for Stictoleptura scutellata, a scarce species in Britain associated with ancient woodland and wood pasture.
Splendid Ox Beetle
Strategus splendens is a large scarab beetle commonly known as the Splendid Ox Beetle. It belongs to the rhinoceros beetle subfamily Dynastinae, characterized by prominent horns in males. The species occurs in the southeastern United States, where it has been documented in sandy habitats and associated with oak woodlands. Adults are attracted to lights and are active during summer months.
Stricticomus is a genus of small beetles in the family Anthicidae, commonly known as ant-like flower beetles. The genus was established by Maurice Pic in 1894 and contains multiple species distributed across three continents. Members of this genus are characterized by their compact, ant-mimicking body form typical of the family. The genus has been recorded from Eurasia, Madagascar, and North America based on specimen collections and observations.
Stropenron nigricollis is a species of click beetle in the family Elateridae. As a member of this family, it possesses the characteristic prosternal process that enables the "clicking" escape mechanism. The species name "nigricollis" (black-necked) suggests a dark coloration on the pronotum or anterior body region. It belongs to a genus with limited documented ecological information.
Pure Click Beetle
Stropenron pudica is a species of click beetle in the family Elateridae. The species is known from 57 iNaturalist observations, indicating it has been documented in citizen science records. It belongs to the genus Stropenron, which is part of the diverse click beetle family characterized by the ability to right themselves when flipped using a prosternal process that snaps against a mesosternal groove.
chestnut bark borer
Strophiona nitens, commonly known as the chestnut bark borer, is a species of flower longhorn beetle in the family Cerambycidae. It is native to North America and has been documented across multiple Canadian provinces and U.S. states. The species belongs to the subfamily Lepturinae, a group characterized by their flower-visiting behavior. Despite its common name referencing chestnut, specific ecological relationships with this host plant require further verification.
Suphis is a genus of small aquatic beetles in the family Noteridae, first described by Aubé in 1836. The genus contains approximately eleven described species distributed primarily in the Americas, with records from North, Central, and South America. Members of this genus are associated with freshwater habitats, particularly wetlands and slow-moving waters. As part of the Noteridae family, they represent one of several genera within the diverse group of predaceous diving beetles.
Susuacanga falli is a species of longhorn beetle (family Cerambycidae) described by Linsley in 1940. The species belongs to the tribe Eburiini within the subfamily Cerambycinae. It has been recorded in Mexico and the United States, though specific ecological details remain poorly documented. The genus Susuacanga comprises several species of medium-sized cerambycid beetles primarily distributed in the Americas.
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.
Symphora rugosa is a species of false darkling beetle in the family Melandryidae, first described by Haldeman in 1848. The species is recorded from eastern Canada, with documented occurrences in New Brunswick, Nova Scotia, Ontario, and Quebec. As a member of the Melandryidae, it belongs to a family of small to medium-sized beetles commonly associated with decaying wood and fungal habitats. The specific epithet 'rugosa' refers to a wrinkled or rough surface texture, likely describing some aspect of the beetle's cuticle or elytra.
Tachinus basalis is a species of rove beetle in the family Staphylinidae, subfamily Tachyporinae. It is a Holarctic species with a broad distribution across northern Eurasia and North America. Like other members of the genus Tachinus, it is likely associated with decaying organic matter and fungal habitats, though specific ecological details remain poorly documented. The species was described by Wilhelm Ferdinand Erichson in 1839.
flea weevil
Tachygonus centralis is a species of flea weevil described by John Lawrence LeConte in 1868. It belongs to the family Curculionidae, the largest family of beetles, commonly known as weevils or snout beetles. The species is known to occur in North America. As a member of the genus Tachygonus, it shares the characteristic flea-like jumping ability that gives these weevils their common name.
Taphrocerus nicolayi is a metallic wood-boring beetle (family Buprestidae) first described by Obenberger in 1924. The species occurs in North America, with confirmed records from Ontario, Canada. Like other members of the genus Taphrocerus, it is a small jewel beetle with larvae that develop in herbaceous vegetation rather than woody plants, distinguishing it from many other buprestids.
Telegeusis is a genus of beetles in the family Omethidae, previously classified in its own family Telegeusidae. The genus contains approximately 12 described species distributed in the southern United States, Mexico, and Panama. Adults of at least one species, T. texensis, exhibit nocturnal flight activity and are attracted to blacklight traps. The genus was established by George Henry Horn in 1895 with T. debilis as the type species.
Telegeusis nubifer is a species of beetle in the family Telegeusidae, first described by Martin in 1932. It is one of the 'long-lipped beetles,' a group characterized by elongated mouthpart structures. The species is known from North America, though detailed biological information remains limited in published sources.
Telesicles is a genus of darkling beetles in the family Tenebrionidae, established by Champion in 1888. The genus is currently recognized as valid and contains species distributed in the Nearctic region. Based on iNaturalist records, the genus has been documented in at least three observations, though specific biological details remain limited in published sources.
Thecesternus humeralis is a species of broad-nosed weevil in the family Curculionidae, described by Say in 1826. It is one of seven species in the genus Thecesternus, commonly known as "bison dung weevils" or "bison snout beetles" due to their historical association with seeking shelter under bison dung. The species is found in North America and shares the genus-wide traits of being small, flightless, nocturnal, and cryptic.
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.
Thinusa is a genus of small rove beetles (family Staphylinidae) inhabiting intertidal marine environments. The genus contains at least two described species: Thinusa fletcheri and T. maritima. Based on morphological characters including maxillary structure and abdominal tergite shape, Thinusa is classified in the tribe Athetini rather than Phytosini.
Thione is a genus of small beetles in the family Monotomidae, established by Sharp in 1899. Members of this genus belong to the tribe Thionini, a group of monotomid beetles characterized by their association with decaying organic matter and fungal substrates. The genus is part of the nitiduloid beetle assemblage within the superfamily Cucujoidea. Species-level taxonomy and biology of Thione remain poorly documented in available literature.
minute marsh-loving beetle
Throscinus politus is a species of minute marsh-loving beetle in the family Limnichidae, first described by Casey in 1889. It belongs to the subfamily Cephalobyrrhinae. The species is found in North America. As a member of Limnichidae, it is associated with moist or marshy habitats, though specific ecological details for this species remain poorly documented.
Throscinus schwarzii is a species of small click beetle in the family Throscidae. Members of this family are generally minute to small beetles with clubbed antennae and a compact body form. Throscinus species are among the less commonly encountered throscids in North America.
Tmesiphorus costalis is a species of ant-loving beetle in the family Staphylinidae, described by J.L. LeConte in 1849. It belongs to the subfamily Pselaphinae, a group of small rove beetles known for their myrmecophilous associations. The species has been recorded across eastern and central North America.
broad-nosed weevil
Trachyphloeosoma advena is a species of broad-nosed weevil described by Zimmerman in 1956. It belongs to the tribe Trachyphloeini within the subfamily Entiminae. The species has been documented in the southeastern United States and Hawaii. As with other members of its genus, it is characterized by the broad rostrum typical of Entiminae weevils.
Trichalophus alternatus is a species of broad-nosed weevil in the family Curculionidae, first described by Say in 1831. It is a member of the subfamily Entiminae, which comprises the so-called 'true' weevils characterized by their elongated snouts. The species has been documented across western North America from Alaska to Colorado.
Trichochrous varius is a species of soft-winged flower beetle in the family Melyridae. Members of this family are typically small, often colorful beetles found in vegetation where they feed on pollen and small insects. The genus Trichochrous contains multiple species characterized by their distinctive antennal and elytral features. Like other melyrids, this species likely inhabits flowers and herbaceous vegetation where it functions as both a pollinator and a predator of small arthropods.
Trichodesma klagesi is a small beetle species in the family Ptinidae (formerly placed in Anobiidae), described by Fall in 1905. The species is known from North America, with distribution records from Ontario, Canada, and has been documented through 26 iNaturalist observations. Taxonomic placement of this species has shifted between families, reflecting ongoing revisions within the superfamily Bostrichoidea.
Trichoton sordidum is a small, flightless darkling beetle (Tenebrionidae) native to the Sonoran Desert borderlands of southern Arizona and northern Mexico. The species exhibits sophisticated behavioral thermoregulation, including photonegativity and temperature-dependent activity patterns. Under resource limitation or environmental stress, individuals form adhesive aggregations or physical clumps of 2–10 beetles as a threat evasion mechanism. Dispersal follows cohesive patterns consistent with Minimum Risk Distribution models.
Tricorynus dichrous is a small beetle species in the family Ptinidae, described by Fall in 1905. The species is known from North America, though detailed ecological and biological information remains sparse. Like other members of the genus Tricorynus, it likely inhabits dry, decaying plant material. Only a handful of observations have been documented.
A small beetle in the family Ptinidae (formerly Anobiidae), described by LeConte in 1865. Records indicate presence in North America, including Ontario, Canada. The genus Tricorynus contains species commonly known as spider beetles or related forms, though specific ecological details for this species remain poorly documented.
Tricorynus similis is a small beetle species in the family Ptinidae, first described by LeConte in 1878. It is found in North America, though specific details about its ecology and biology remain limited. The species belongs to a genus of beetles commonly associated with stored products and wood-boring habits, though direct evidence for T. similis is lacking.
Tricorynus texanus is a species of beetle in the family Ptinidae, first described by White in 1965. It belongs to a genus of small beetles commonly known as deathwatch beetles or furniture beetles. The species is found in North America. Very little specific information about its biology, ecology, or behavior has been published.
Santa Cruz Island weevil, Stanton's trigonoscuta weevil, Santa Cruz island shore weevil
Trigonoscuta stantoni is a species of broad-nosed weevil in the family Curculionidae. The species is endemic to the Channel Islands of California, specifically documented from Santa Cruz Island. It is a member of a genus containing several insular species with restricted distributions.
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.
Trixagus carinicollis is a small false click beetle in the family Throscidae. It is found in North America, with records from Canada including Alberta, British Columbia, and New Brunswick. The species was described by Schaeffer in 1916.
Trogloderus arcanus is a species of darkling beetle (Tenebrionidae) described in 2019. It belongs to the psammophilic genus Trogloderus, a group restricted to dunes and sandy habitats in the western United States. The species was described as part of a phylogenetic revision of the genus.