Cercyon setulosus
Sharp, 1884
Cercyon setulosus is a small in the Hydrophilidae, first described by Sharp in 1884. It belongs to the Cercyon, a group of water scavenger beetles commonly found in moist or decaying organic matter. The has a documented distribution across the northern Pacific Rim, including Japan, Russia, western Canada, and the northwestern United States.
Pronunciation
How to pronounce Cercyon setulosus: /ˈsɛrkɪˌɒn sɛtʊˈloʊsəs/
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Habitat
in the Cercyon are generally associated with moist , often found in decaying plant matter, , fungi, and other decomposing organic substrates. Specific microhabitat preferences for C. setulosus have not been documented.
Distribution
Japan (Hokkaido), Russia (Far East, Kuril Islands), Canada (British Columbia), United States (Alaska, Washington).
Ecological Role
As a member of Hydrophilidae, likely contributes to decomposition and nutrient cycling in moist terrestrial and freshwater-edge environments.
More Details
Taxonomic Note
Catalogue of Life lists this as a synonym, though GBIF and iNaturalist treat it as accepted. This discrepancy suggests ongoing taxonomic evaluation.
Observation Rarity
Only 7 observations recorded on iNaturalist as of data retrieval, indicating either genuine rarity, cryptic habits, or under-sampling of its northern .