Casey-1891

Guides

Aneflus levettei
Aneflus levettei is a species of longhorn beetle (family Cerambycidae) in the tribe Elaphidiini, described by Thomas L. Casey in 1891. Larvae are root-feeders on velvetpod mimosa (Mimosa dysocarpa), with pupation occurring below the soil surface. Adults have been observed resting on foliage of Baccharis sarothroides (desert broom). The species occurs in the southwestern United States and Mexico.
Cerambycidae Elaphidiini root-borer Mimosa desert-beetle southwestern-US Mexico Casey-1891 Aneflomorpha-levettei
Anepsius montanus
Mountain Darkling Beetle
Anepsius montanus is a darkling beetle (Tenebrionidae) described by Casey in 1891. The species is known from Alberta, Canada, with very few documented observations. As a member of the genus Anepsius, it belongs to a group of tenebrionid beetles typically associated with dry, often montane habitats. The common name "Mountain Darkling Beetle" reflects its alpine or subalpine distribution pattern.
darkling-beetle Tenebrionidae Coleoptera Alberta montane rare Casey-1891
Helops discipulus
Helops discipulus is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1891. As a member of the genus Helops, it belongs to the tribe Helopini within the subfamily Tenebrioninae. The genus Helops is primarily distributed in North America. Darkling beetles in this genus are typically found in terrestrial habitats and are characterized by their concealed mandibles and bead-like antennae segments, distinguishing them from predatory ground beetles.
Coleoptera Tenebrionidae darkling-beetle Helops North-America Casey-1891 Helopini
Lixus nitidulus
Lixus nitidulus is a species of true weevil in the family Curculionidae, described by Casey in 1891. It is a member of the large genus Lixus, which contains numerous stem-boring weevil species associated with various herbaceous plants. The species is recorded from North America, though specific details about its biology and ecology remain poorly documented in the available literature.
weevil Curculionidae North-America Casey-1891
Plionoma rubens
Plionoma rubens is a species of longhorned beetle in the family Cerambycidae, described by Thomas L. Casey in 1891. It belongs to the tribe Trachyderini, a group known for bright coloration, diurnal activity, and attraction to flowers. The species occurs in the southwestern United States and northern Mexico, with records from Texas west to California. Like other members of its genus, adults are associated with mesquite and other woody legumes.
Cerambycidae Trachyderini longhorned-beetle diurnal bimodal-activity southwestern-US Mexico flower-visiting mesquite-associated Casey-1891
Sternidius mimeticus
Sternidius mimeticus is a small longhorned beetle (Cerambycidae: Lamiinae) described by Casey in 1891. The genus Sternidius has undergone taxonomic revision, with species formerly synonymized under Sternidius alpha later revalidated. This species is part of a group of small cerambycids commonly encountered by collectors beating vegetation in western North America. Specimens are typically pointed rather than pinned due to their small size.
Cerambycidae Lamiinae Acanthocinini longhorned-beetle small-cerambycid pointed-specimen revalidated-species Casey-1891
Tetropium parallelum
Tetropium parallelum is a species of longhorned beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the genus Tetropium, which comprises woodboring beetles primarily associated with coniferous trees. The species is recorded from western North America, including Alberta, Canada and the United States. Like other members of its genus, it likely develops in dead or dying conifer wood, though specific biological details remain poorly documented.
Cerambycidae Tetropiini woodboring-beetle conifer-associate western-North-America Casey-1891
Tetropium parvulum
Northern Spruce Borer
Tetropium parvulum, the northern spruce borer, is a small cerambycid beetle specialized on spruce hosts. It was elevated from synonymy with T. cinnamopterum based on distinct morphological differences in larvae and adults, and exhibits strict host specificity to Picea compared to the conifer generalist T. cinnamopterum. The species has a one-year life cycle and is an economically important borer of white and Engelmann spruce logs in western Canada.
Cerambycidae spruce-borer wood-boring-beetle forest-pest western-Canada conifer-specialist Tetropium Picea economic-pest one-year-life-cycle Tetropium-parvulum Northern-Spruce-Borer Tetropium-cinnamopterum-complex morphological-diagnosis strict-host-specificity Tetropium-alaskanum-synonym Rhimphoctona-alaskensis-parasitoid spruce-log-pest Alberta-forestry boreal-forest-insect phloem-feeder cambium-borer L-shaped-galleries early-summer-emergence woodpecker-predation disease-mortality excess-heat-mortality Tetropium-velutinum-comparison lectotype-designation Tetropium-parallelum Tetropium-schwarzianum coniferous-forest-decomposer primary-borer Tetropium-taxonomy Casey-1891 Canadian-Entomologist economic-entomology forest-health timber-pest spruce-regeneration Picea-glauca-pest Picea-engelmannii-pest western-Canadian-distribution North-American-Cerambycidae Tetropium-morphology larval-urogomphi adult-genitalia pronotal-punctation eye-morphology scutellum-structure host-preference-divergence conifer-specialist-vs-generalist sympatric-species species-elevation-from-synonymy type-specimen-examination diagnostic-key forest-insect-natural-enemies insect-disease-mortality parasitoid-wasp woodpecker-insectivory thermal-mortality gallery-depth overwintering-biology spring-pupation September-larval-maturity one-year-univoltine spruce-logging-impact forest-management integrated-pest-management boreal-forest-ecology subcortical-insect phloeophagous-beetle xylophagous-larvae wood-degradation nutrient-cycling forest-succession disturbance-ecology fire-killed-spruce windthrow-spruce salvage-logging-insect standing-dead-timber spruce-beetle-complex Scolytinae-competitor Cerambycidae-community coniferous-wood-borer-guild North-American-forest-insects western-Canadian-entomology Alberta-entomology British-Columbia-entomology Manitoba-entomology Labrador-entomology transcontinental-distribution boreal-forest-biodiversity spruce-ecosystem-engineer 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Tetropium schwarzianum
Tetropium schwarzianum is a species of longhorn beetle in the family Cerambycidae, described by Casey in 1891. It belongs to the tribe Tetropiini and is closely related to T. cinnamopterum based on morphological examination of type specimens. The species occurs in eastern North America, with distribution records from Canada (New Brunswick, Newfoundland, Nova Scotia, Ontario). As with other Tetropium species, adults are likely associated with coniferous hosts, though specific host records for this species remain undocumented in available sources.
Cerambycidae Tetropiini conifer-associated North-American Casey-1891