Stenotothorax cribratulus
(Schmidt, 1917)
Stenotothorax cribratulus is a of scarab beetle in the Aphodiinae, originally described by Schmidt in 1917. It is a small dung beetle native to the Pacific Northwest region of North America. The species belongs to a characterized by distinctive body sculpturing. Records indicate it occurs in forested mountainous regions.
Pronunciation
How to pronounce Stenotothorax cribratulus: //ˌstɛnoʊtəˈθɔːræks krɪˈbrætʃuːləs//
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Identification
Members of Stenotothorax can be distinguished from related Aphodiinae by the presence of a distinct longitudinal groove or impression on the pronotum and the finely punctate, often reticulate surface sculpturing of the . The specific epithet 'cribratulus' refers to the sieve-like (cribrate) punctation pattern. Confirmation of identity requires examination of male genitalia and comparison with .
Habitat
Montane and subalpine forest in the Pacific Northwest, typically associated with coniferous and mixed woodlands.
Distribution
to the Pacific Northwest of North America. Documented from Idaho, Oregon, and Washington in the United States, and British Columbia in Canada.
Ecological Role
As a member of Aphodiinae, likely functions as a contributing to nutrient cycling and soil formation through processing of decaying organic matter.
Similar Taxa
- Other Stenotothorax speciesShare the distinctive pronotal groove and body sculpturing; require genitalic examination for definitive separation.
- Aphodius sensu lato and related Aphodiini generaSimilar small size and general habitus; differ in pronotal structure and elytral punctation patterns.
More Details
Taxonomic history
The was originally described by Schmidt in 1917 and has remained in the Stenotothorax following modern revisions of Aphodiinae. The genus is placed in the tribe Aphodiini, subtribe Aphodiina.
Collection and study challenges
The has zero observations in iNaturalist and appears to be rarely collected. This may reflect genuine rarity, cryptic habits, or under-sampling of its montane . Most records derive from historical museum specimens.