Epauloecus
Mulsant & Rey, 1868
Species Guides
1Epauloecus is a of small beetles in the Ptinidae, a group commonly known as spider beetles or deathwatch beetles. The genus was established by Mulsant & Rey in 1868. Only one , Epauloecus unicolor, is currently recognized. Members of Ptinidae are generally associated with stored products, wood, or dry organic matter.
Pronunciation
How to pronounce Epauloecus: /ˌɛpɔːˈloʊəkəs/
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Identification
As a within Ptinidae, Epauloecus likely share the characteristics of small size (usually 2–5 mm), rounded or oval body shape, long legs relative to body size, and with a distinct club. The 'unicolor' suggests a uniformly colored appearance. Definitive identification to genus requires examination of subtle morphological features such as pronotal shape, antennal structure, and tibial spurs.
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Distribution
Distribution records from GBIF indicate presence in Denmark (DK), Norway (NO), and Sweden (SE), suggesting a northern European range. The single iNaturalist observation and limited records suggest this may be underreported or genuinely rare.
Similar Taxa
- PtinusThe most widespread in Ptinidae; Epauloecus may be distinguished by subtle differences in pronotal structure and antennal club segmentation, though definitive separation requires examination.
- GibbiumAnother Ptinidae with globular body form; differs in having a more strongly convex profile and different antennal proportions.
More Details
Taxonomic note
The placement of Epauloecus has varied historically; Ptinidae is sometimes treated as a (Ptininae) within Bostrichidae or Anobiidae in older literature. The current consensus treats Ptinidae as a distinct family.