Xyletomerus
Fall, 1905
death-watch and spider beetles
Species Guides
1Xyletomerus is a of small beetles in the Ptinidae, historically treated as part of Anobiidae. The genus contains at least two described : X. arbuti and X. histricus. These beetles are classified among the death-watch and spider beetles, a group associated with wood-boring or stored product . The genus was established by Fall in 1905.
Pronunciation
How to pronounce Xyletomerus: //zaɪlˈiːtəˌmɛrəs//
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Host Associations
- Arbutus - possibly associated with epithet 'arbuti' suggests plant association with madrone or related Ericaceae
Similar Taxa
- PtinusBoth belong to Ptinidae and share the 'spider beetles'; Xyletomerus may be distinguished by more specific associations and subtle morphological differences in antennal structure
- AnobiumHistorically classified together in Anobiidae; Xyletomerus has been reclassified to Ptinidae based on phylogenetic studies, separating it from true death-watch beetles in Anobiidae sensu stricto
More Details
Taxonomic history
Xyletomerus has undergone -level reclassification, moving from Anobiidae to Ptinidae. This reflects ongoing revisions in the classification of death-watch and spider beetles, with Ptinidae now treated as a distinct family rather than a of Anobiidae.
Species diversity
Only two are formally described, suggesting the may be small or understudied. The limited number of iNaturalist observations (2) indicates these beetles are rarely encountered or poorly documented in citizen science databases.