Root-borer
Guides
Prionus cuneatus
Prionus cuneatus is a species of longhorned beetle in the family Cerambycidae, subfamily Prioninae. The species was described by Casey in 1924 and is currently considered a synonym of Prionus imbricornis in some taxonomic databases. Like other members of the genus Prionus, it is a root-boring beetle with subterranean larvae. The species belongs to a genus that has been the focus of recent collecting efforts in the Great Plains using synthetic prionic acid pheromone lures.
Prionus geminus
Prionus geminus is a longhorned beetle species in the subfamily Prioninae, described in 2016 from material collected in the Great Plains region of North America. It belongs to the subgenus Homaesthesis, a group of grassland-associated Prionus species whose biology remains poorly documented. The species is part of a genus whose larvae are subterranean root feeders, though specific host associations for P. geminus have not been established.
Prionus heroicus
Heroic prionus
Prionus heroicus is one of the largest long-horned beetles in North America, with males reaching substantial size. The species occurs in oak and pine-juniper woodlands of the southwestern United States and adjacent Mexico, with larvae developing underground as root-feeders. Adults are active during both day and night and are attracted to prionic acid lures, though males typically cannot locate the precise source and instead circle or search nearby. The species exhibits a defensive posture when disturbed, raising its anterior body off the ground.
Prionus laticollis
broad-necked root borer, broad necked prionus
Prionus laticollis, commonly known as the broad-necked root borer, is a large root-boring longhorn beetle native to eastern North America. The species is a significant economic pest of apple orchards, where larvae tunnel through roots causing structural damage to trees. Adults are primarily nocturnal, with males attracted to lights and females using an elongated ovipositor to deposit eggs in soil. The species exhibits strong sexual dimorphism, with females substantially larger than males. The life cycle spans 3-4 years, with larvae developing underground while feeding on tree roots.
Pterolonchidae
Pterolonchidae is a small family of minute moths in the superfamily Gelechioidea, comprising approximately 19 species across seven genera. The family has undergone substantial taxonomic revision, with genera reassigned from multiple other families based on cladistic analysis. Species are distributed across every continent except Australia and Antarctica, with notable concentrations in the Mediterranean region, western North America, and southern Africa. Several species have significant ecological and economic importance, including one used as a biological control agent for invasive knapweeds and another that is a major agricultural pest of cereal crops.
Sphenoptera jugoslavica
bronze knapweed root borer
Sphenoptera jugoslavica is a metallic wood-boring beetle in the family Buprestidae. It is monophagous on Centaurea diffusa (diffuse knapweed), forming spindle-shaped root galls in rosettes. The species is univoltine and was introduced to North America as a biological control agent for this invasive weed. Its effectiveness is limited by phenological requirements for arrested plant growth during oviposition.
Stenodontes chevrolati
Chevrolat's tropical long-horned beetle
Stenodontes chevrolati is a species of long-horned beetle in the family Cerambycidae, subfamily Prioninae. It is one of the largest cerambycid species in North America, with males reaching substantial size. The species occurs in the Caribbean and southern North America, where adults are attracted to lights and have been documented in oak woodland habitats. Larval development occurs in living oak trees, with adults emerging after several years of subterranean feeding on roots.
Sufetula
Sufetula is a pantropical genus of moths in the family Crambidae (subfamily Lathrotelinae), established by Walker in 1859. The genus contains at least 32 described species, including several that are economically significant pests of cultivated plants. Sufetula anania is a destructive root borer of pineapple (Ananas comosus) in Central America, causing damage that can destroy the root system. Sufetula culshawi, described in 2024, is a previously unrecognized species associated with cultivated palms (Areca Palm, Chrysalidocarpus lutescens), spread through horticultural trade. Larvae of at least some species are root-feeders that create tunnels within plant tissues.
Synanthedon polygoni
Buckwheat Root Borer Moth
A clearwing moth (family Sesiidae) whose larvae bore into the roots and crowns of buckwheat and related plants. Adults exhibit wasp-like mimicry with reduced wing scaling and are primarily diurnal. The species is found across western North America from the Great Plains to the Pacific.
Tetraopes pilosus
Pilose Milkweed Beetle
Tetraopes pilosus is a longhorned beetle in the family Cerambycidae, described by Chemsak in 1963. It is a milkweed specialist restricted to Quaternary sandhills of the central and southern Great Plains. Adults are characterized by dense white pubescence and bright red-and-black aposematic coloration. The species is closely associated with sand milkweed (Asclepias arenaria), feeding on both foliage as adults and roots as larvae.
Tetraopes quinquemaculatus
five-spotted milkweed beetle
Tetraopes quinquemaculatus is a milkweed-associated longhorn beetle (Cerambycidae) described by Haldeman in 1847. It is native to North America and is one of several species in the genus Tetraopes that specialize on milkweeds (Asclepias). The species is considerably less common than the widespread T. tetrophthalmus and has been documented from sand prairie and dry sandy habitats in the Mississippi River Alluvial Basin. Adults are visually distinctive and larvae develop as root borers in living milkweed plants.
Tetraopes skillmani
Skillman's Milkweed Longhorn
Tetraopes skillmani is a longhorn beetle (Cerambycidae: Lamiinae) described in 2004 from Arizona. It belongs to the milkweed beetle genus Tetraopes, whose members are obligate specialists on Asclepiadaceae host plants. The type locality is near Duquesne in southeastern Arizona, where collectors found its host plant Sarcostemma sp. but did not encounter the beetles during the initial survey.
Triclonella pergandeella
sweetclover root borer moth, Bush-clover triclonella
Triclonella pergandeella is a small moth with a wingspan of approximately 14 mm, found in the southeastern and mid-Atlantic United States. Adults are active from March through October. The larvae are root borers that feed on Lespedeza and Clitoria species, reaching about 12 mm in length with a distinctive yellow head.
Vitacea
Grape Root Borer Moths
Vitacea is a genus of clearwing moths in the family Sesiidae, commonly known as grape root borer moths. The genus contains four recognized species, including Vitacea polistiformis, a significant agricultural pest of grape vineyards in the eastern United States. Adults are wasp mimics with reduced wing scaling that gives them a distinctive transparent appearance. Larvae are subterranean root borers that feed on grapevine roots, causing economically important damage to cultivated grapes.
Vitacea polistiformis
grape root borer, Grape Root Borer Moth
Vitacea polistiformis, commonly known as the grape root borer, is a clearwing moth in the family Sesiidae. It is a significant agricultural pest of grapevines (Vitis spp.) in the eastern and midwestern United States, where larval feeding on roots causes 'slow vine decline' that may take 5–10 years to become visible aboveground. Adults are Batesian mimics of Polistes paper wasps. As few as nine larvae can kill a mature vine with an 8-inch base circumference.
Vitacea scepsiformis
Lesser Grape Root Borer Moth
Vitacea scepsiformis, the lesser grape root borer moth, is a clearwing moth in the family Sesiidae. It occurs across eastern and central North America, where its larvae develop as root borers in grapevines (Vitis species). Adults are active from mid-summer through early autumn and are wasp mimics in appearance. The species is smaller than the related grape root borer (Vitacea polistiformis) and generally considered less economically damaging.
Walshia miscecolorella
Sweet Clover Root Borer Moth, sweetclover root borer moth
Walshia miscecolorella is a small moth in the family Cosmopterigidae, commonly known as the sweet clover root borer moth. It was described by V.T. Chambers in 1875. The species is notable for its broad North American distribution and year-round adult activity. Larvae feed on roots and lower stems of various leguminous plants and other species.
Xylocrius agassizi
Gooseberry Root Borer
Xylocrius agassizi is a species of longhorn beetle in the family Cerambycidae, first described by Hatch in 1971. It is currently treated as a synonym of Xylocrius agassizii in some taxonomic databases, though the original spelling agassizi is also in use. The species is known from western North America, with records from British Columbia, Canada and the United States. Its common name, Gooseberry Root Borer, suggests an association with Ribes (gooseberry/currant) plants as hosts.