Atomaria apicalis

Species-level identification within Atomaria requires examination of genitalia and other microscopic features. Members of the genus are small, oval beetles typically under 3 mm in length. A. apicalis may be distinguished from congeners by subtle differences in antennal structure, pronotal shape, and male genitalia, though these characters require specialist verification.

Cryptophagid beetles are typically found in association with fungi, including molds on decaying plant matter, under bark, and in other moist, decomposing organic substrates. Specific microhabitat preferences for A. apicalis have not been documented.

Europe; Northern Asia (excluding China); North America. Records include the Azores (Faial, São Miguel).

As a member of the silken fungus beetles, this species likely contributes to nutrient cycling through consumption of fungal mycelia and spores in decaying organic matter.

No documented economic importance. Like most Cryptophagidae, it is not known to be a pest of stored products or agriculture.

• Atomaria spp.Other species in the genus are morphologically similar and require dissection for reliable identification.
• Cryptophagus spp.Related genus in the same family; members are similarly small, oval, and fungus-associated, differing in antennal and tarsal structure.

• Coleoptera
• Cryptophagidae
• silken fungus beetle
• Holarctic
• fungus-associated

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Meloidae Holdings | Entomology Research Museum
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