Flat-bark-beetle
Guides
Ahasverus longulus
Ahasverus longulus is a species of silvanid flat bark beetle in the family Silvanidae, first described by Blatchley in 1910. It is known from North America, with documented records from Canada including New Brunswick, Ontario, and Québec. As a member of Silvanidae, it is associated with bark and wood habitats, though specific ecological details remain limited.
Cathartosilvanus vulgaris
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.
Cathartus quadricollis
square-necked warrior beetle
A small predatory flat bark beetle in the family Silvanidae with a broad global distribution spanning the Americas, Africa, and the Galápagos Islands. In Hawaii, it serves as an important natural enemy of agricultural scolytine pests including the coffee berry borer, tropical nut borer, and black twig borer. Laboratory studies confirm it can complete development on various stored grains and seeds. The species shows potential for augmentative biological control programs due to its limited dispersal from release sites and established predation rates on pest eggs.
Catogenus rufus
Eastern Flat Passandrid
Catogenus rufus is a species of parasitic flat bark beetle in the family Passandridae. The species was described by Fabricius in 1792. It is found in North America, with distribution records including Canada (Ontario) and the United States. The common name "Eastern Flat Passandrid" reflects its geographic concentration in eastern North America. Members of Passandridae are known for their flattened body form and parasitic or commensal relationships with wood-boring beetles.
Charaphloeus unnamed
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.
Cryptamorpha desjardinsii
Desjardin's beetle, Desjardin's flat beetle
Cryptamorpha desjardinsii is a small silvanid flat bark beetle, originally described from tropical Asia in 1844. It has established cosmopolitan distribution through human-mediated introduction, now occurring across Europe, North America, the Caribbean, and Oceania. The species feeds on mildews and moulds, particularly on plants such as flax. Its spread to New Zealand is documented as occurring via Australia.
Cryptolestes cornutus
Cryptolestes cornutus is a species of flat bark beetle in the family Laemophloeidae. The genus Cryptolestes comprises small, elongate beetles commonly found under bark and in stored products. Many species in this genus are recognized as pests of stored grain and cereal products. The specific epithet 'cornutus' refers to horn-like structures, though detailed morphological descriptions for this particular species are limited in available literature.
Cryptolestes punctatus
Cryptolestes punctatus is a species of lined flat bark beetle in the family Laemophloeidae. It is native to North America, with distribution records from Canada (Ontario) and the United States. The species was first described by LeConte in 1854. As a member of Laemophloeidae, it belongs to a family of small, flattened beetles commonly associated with dead or decaying wood and stored products.
Laemophloeus biguttatus
Two-spotted Flat Bark Beetle
Laemophloeus biguttatus is a species of lined flat bark beetle in the family Laemophloeidae. The species is distributed across Central America and North America, with records extending to British Columbia. As a member of Laemophloeidae, it belongs to a group commonly known as flat bark beetles due to their dorsoventrally compressed bodies adapted for living under bark.
Laemophloeus fasciatus
Square-spotted Flat Bark Beetle, lined flat bark beetle
Laemophloeus fasciatus is a species of flat bark beetle in the family Laemophloeidae, commonly known as the Square-spotted Flat Bark Beetle. It is native to North America and has been recorded from multiple Canadian provinces including Manitoba, New Brunswick, and Nova Scotia. As a member of the lined flat bark beetles, it inhabits the spaces beneath tree bark.
Lathropus pubescens
lined flat bark beetle
Lathropus pubescens is a species of lined flat bark beetle in the family Laemophloeidae. The species was described by Casey in 1884. It is native to North America, though specific details about its biology and ecology remain poorly documented in the available literature.
Metaxyphloeus texanus
Nose-jawed Flat Bark Beetle
Metaxyphloeus texanus is a species of flat bark beetle in the family Laemophloeidae, known from North America. The common name "Nose-jawed Flat Bark Beetle" refers to distinctive cranial modifications characteristic of the genus. Very little published information exists on the biology or ecology of this species.
Monanus
Monanus is a genus of small beetles in the family Silvanidae, first described by Sharp in 1879. The genus contains at least 21 described species distributed primarily in tropical and subtropical regions. Species in this genus have been documented across multiple continents including Australia, Asia, and Africa. Members of Silvanidae are commonly known as silvanid flat bark beetles or cucujoid beetles, though specific ecological details for Monanus remain limited in published literature.
Narthecius grandiceps
lined flat bark beetle
Narthecius grandiceps is a species of lined flat bark beetle in the family Laemophloeidae. It was described by LeConte in 1863. The species is found in North America and is part of a family whose members are commonly known as flat bark beetles due to their characteristic flattened body form that allows them to inhabit spaces under bark.
Nausibius
Nausibius is a genus of silvanid flat bark beetles in the family Silvanidae. The genus is cosmopolitan with extant representatives worldwide. A fossil species, Nausibius radchenkoi, has been described from Eocene Rovno amber, confirming the genus originated at least 34 million years ago and was present in European forest ecosystems. Extant species are frequently associated with stored food products, particularly sugar.
Nausibius clavicornis
Nausibius clavicornis is a cosmopolitan silvanid flat bark beetle known primarily as a pest of stored sugar products. It is frequently recorded from sugar commodities and has been most commonly collected from sugar in Trinidad, where it appears restricted to this substrate. Under laboratory conditions, development from egg to adult averages 30 days. The species exhibits relatively high fecundity and adult longevity, with females living up to 163 days and producing an average of 275 eggs. However, it is unlikely to multiply rapidly in raw or unrefined sugar, and any deterioration it causes in stored products is minor compared to other factors.
Nausibius repandus
silvanid flat bark beetle
Nausibius repandus is a species of silvanid flat bark beetle in the family Silvanidae, first described by LeConte in 1866. It is found in North America. The species belongs to a genus of beetles commonly associated with stored products and decaying plant material. Very few specific details about its biology or ecology have been documented in the available literature.
Parandrita cephalotes
lined flat bark beetle
Parandrita cephalotes is a species of lined flat bark beetle in the family Laemophloeidae, first described by LeConte in 1854. It is native to North America and belongs to a genus of small beetles typically found under bark. The species epithet "cephalotes" refers to its head characteristics. Like other members of Laemophloeidae, it is likely associated with dead or decaying wood habitats, though specific ecological details remain poorly documented.
Pediacus andrewsi
Andrews' flat bark beetle
Pediacus andrewsi is a species of flat bark beetle in the family Cucujidae, first described by Thomas in 2004. It is native to North America, with records from British Columbia, Canada. As a member of the flat bark beetle family, it is presumed to inhabit the spaces beneath bark on trees, where members of this family typically feed on fungal spores and other small organic particles.
Pediacus depressus
flat bark beetle
Pediacus depressus is a species of flat bark beetle in the family Cucujidae. It is distributed across Europe and Northern Asia, excluding China. The species was first described by Herbst in 1797 (or 1794 in some sources) under the name Colydium depressum. As a member of the flat bark beetles, it is adapted to living under bark and in similar concealed habitats.
Pediacus fuscus
Pediacus fuscus is a species of flat bark beetle in the family Cucujidae. The species has a Holarctic distribution, occurring in Europe, Northern Asia (excluding China), and North America. As a member of the Cucujidae, it belongs to a group of beetles adapted to living under bark and in decaying wood.
Pediacus gracilis
Pediacus gracilis is a species of flat bark beetle in the family Cucujidae, described by Thomas in 2004. The genus Pediacus comprises flattened beetles associated with dead wood habitats. This species is distinguished from congeners by its slender body form, as indicated by its specific epithet. Records indicate presence in North America, though detailed biological information remains limited.
Pediacus hesperoglaber
Pediacus hesperoglaber is a species of flat bark beetle described from western North America in 2004. It belongs to the family Cucujidae, a group of elongate beetles associated with decaying wood and fungal habitats. The species epithet 'hesperoglaber' references its western distribution and smooth appearance. Like other members of the genus, it likely inhabits forest environments where it occurs under bark or in wood-decay communities.
Pediacus stephani
flat bark beetle
Pediacus stephani is a species of flat bark beetle in the family Cucujidae, described by Thomas in 2004. It is one of several species within the genus Pediacus, which are characterized by their flattened bodies adapted for living under bark. The species is known from North America, with records from British Columbia, Canada.
Pensus gilae
Pensus gilae is a small beetle species in the family Silvanidae, described by Casey in 1884. It belongs to a genus of flat bark beetles found in North America. Members of this family are generally associated with dead or decaying wood and plant material. Specific biological details for this species remain limited in published literature.
Psammoecus trimaculatus
Psammoecus trimaculatus is a small silvan flat bark beetle native to the Afro-Oriental region that has been introduced to many parts of the world. Adults measure 2.23–2.96 mm in length and are characterized by a longitudinal sutural spot on the elytra. The species is frequently attracted to light and has been recorded from diverse geographic regions including Asia, Africa, and the Americas.
Rhabdophloeus horni
lined flat bark beetle
Rhabdophloeus horni is a species of lined flat bark beetle in the family Laemophloeidae, first described by Casey in 1884. The species is found in North America. Members of this family are characterized by their flattened body form, an adaptation for living beneath bark. Very little specific biological information has been published for this particular species.
Silvanoprus angusticollis
Silvanoprus angusticollis is a silvanid flat bark beetle (family Silvanidae) first described by Reitter in 1876. The species occurs in North America, including the Canadian province of Québec. Like other members of Silvanidae, it inhabits environments associated with dead or decaying wood and stored plant products. The genus Silvanoprus is distinguished from related genera by specific morphological features of the antennae and pronotum.
Silvanoprus scuticollis
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.
Silvanus muticus
Silvanus muticus is a species of silvanid flat bark beetle in the family Silvanidae, first described by Sharp in 1899. It belongs to a group of beetles commonly known as flat bark beetles due to their dorsoventrally flattened body form, an adaptation for living under bark and in other tight spaces. The species has been documented in Central America and North America, with distribution records extending as far north as British Columbia, Canada.
Silvanus nitidulus
Elegant Silvan Flat Bark Beetle
Silvanus nitidulus is a small flat bark beetle in the family Silvanidae. The species was described by LeConte in 1854 and is distributed across North America, with confirmed records from Alberta and Manitoba in Canada. It is known by the common name Elegant Silvan Flat Bark Beetle.
Silvanus planatus
Plain Silvan Flat Bark Beetle
Silvanus planatus is a species of silvanid flat bark beetle in the family Silvanidae. It is found in North America and Oceania. The species was described by Germar in 1824. Very little specific biological information is available for this species.
Silvanus proximus
Silvanus proximus is a species of silvanid flat bark beetle described by Grouvelle in 1904. The genus Silvanus belongs to the family Silvanidae, a group of small beetles commonly found in association with decaying plant material and stored products. Distribution records indicate presence across multiple continents including Africa, the Caribbean, Middle America, North America, and South America. The species is part of a genus containing approximately 20 described species, though detailed biological information for S. proximus specifically remains limited in published literature.
Uleiota debilis
A small silvanid flat bark beetle found in North America. Adults are reddish-brown in color. The species is documented from Canada (Manitoba, Nova Scotia, Ontario) and the United States.
Uleiota truncata
Uleiota truncata is a small beetle species in the family Silvanidae, first described by Motschulsky in 1845. Members of this family are commonly known as silvanid flat bark beetles, typically associated with decaying wood and bark habitats. The genus Uleiota contains multiple species distributed across various regions, though detailed species-level biology for U. truncata remains poorly documented in accessible literature.