Bradycinetulus fossatus
(Haldeman, 1853)
fossate bolboceratine, fossate earth-boring dung beetle
Bradycinetulus fossatus is a large, robust bolboceratine geotrupid found in sand dune and sandy grassland of the south-central United States. The is characterized by its chunky body form and (burrowing) adaptations typical of the . It is attracted to lights at night and has been documented in Oklahoma, New Mexico, and Texas. The species is part of a small of North American bolboceratines that are poorly studied relative to their ecological role in sandy .
Pronunciation
How to pronounce Bradycinetulus fossatus: //brædɨsɪnɪˈtuːləs fɒˈseɪtəs//
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Identification
Bradycinetulus fossatus can be distinguished from the smaller, co-occurring Eucanthus by its substantially larger and more robust body form. The Bradycinetulus contains species that are among the largest North American bolboceratines. Specific diagnostic features for B. fossatus relative to require examination of male genitalia and detailed comparison of pronotal and elytral sculpturing, which are not documented in the available sources.
Habitat
Sand dune and sandy grasslands, particularly in areas with loose, sandy soils suitable for burrowing. Documented from alkaline flats and sand dune trails in mixed grassland-shrubland .
Distribution
South-central United States: recorded from Oklahoma (Alfalfa County, Salt Plain National Wildlife ), New Mexico (Roosevelt County, Oasis State Park), Texas, Arkansas, Colorado, Nebraska, and Wisconsin. The distribution appears centered on the southern Great Plains and associated sand dune systems.
Seasonality
have been observed in June, suggesting summer activity. indicated by attraction to building lights at night.
Behavior
; attracted to artificial lights at night. Likely (burrowing) given and characteristics, though direct observations of burrowing are not documented. Dead specimens have been found on roads through sand dune , suggesting some level of nocturnal surface activity.
Ecological Role
As a bolboceratine geotrupid, likely contributes to soil aeration and nutrient cycling through burrowing activity in sandy substrates. The Bolboceratinae is associated with sandy or loose soils where and larvae burrow.
Similar Taxa
- Eucanthus spp.Smaller bolboceratine geotrupids that co-occur in the same sand dune ; distinguished by smaller body size and less robust build.