Asemum caseyi
Linsley, 1957
Asemum caseyi is a of in the , described by Linsley in 1957. The Asemum comprises conifer-associated wood-boring with Holarctic distribution. Like , this species likely develops in dead or dying conifer wood, with active during warmer months. The species has been recorded from western North America including British Columbia, California, and Mexico.
Pronunciation
How to pronounce Asemum caseyi: /əˈsiːməm ˈkeɪsiːaɪ/
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Identification
Members of the Asemum are distinguished from similar genera by their elongate, somewhat flattened body form and that are shorter than the body. The genus is characterized by a that is narrower at the base than the at their base, and elytra that taper posteriorly. Specific diagnostic features for A. caseyi relative to other Asemum are not documented in available sources.
Habitat
Based on -level , likely associated with coniferous forests. Congeneric breed in dead or dying conifer trunks and branches, particularly pine (Pinus spp.).
Distribution
Western North America: recorded from British Columbia (Canada), California (USA), and Mexico.
Host Associations
- Pinus - likely breeding inferred from congeneric ; not specifically documented for this
Ecological Role
As a wood-boring , likely contributes to decomposition of dead conifer wood and in forest .
Similar Taxa
- Asemum striatumcongeneric with similar conifer-associated and Holarctic distribution; distinguished by subtle morphological differences in antennal and pronotal structure
- Tetropium spp.similar conifer-boring with comparable body form; distinguished by differences in antennal length and pronotal shape
More Details
Taxonomic note
Asemum caseyi was described by E. Gorton Linsley in 1957. The Asemum belongs to the tribe Asemini within . Several Asemum , including the Holarctic A. striatum, are known to be attracted to fermenting and can be collected in ethanol-baited traps.
Data limitations
Available sources provide minimal specific information for this . Most ecological inferences are drawn from -level characteristics and congeneric rather than direct observation of A. caseyi.