Bolbocerosoma biplagiatum

Members of the genus Bolbocerosoma can be distinguished from other Geotrupidae by their compact, convex body form and the structure of their clypeus and mandibles adapted for digging. The specific epithet 'biplagiatum' suggests the presence of two spots or markings on the elytra, though detailed diagnostic features for this species are not well documented in available sources.

Based on the distribution records and the biology of related Bolboceratinae, this species likely inhabits open grassland and prairie habitats with well-drained soils suitable for burrowing. The genus Bolbocerosoma is associated with sandy or loamy soils where adults construct burrows.

Nearctic region: United States (Colorado, Iowa, Kansas, Nebraska, Oklahoma, Texas, Wisconsin). The species appears to be centered in the Great Plains and adjacent regions.

Like other bolboceratine geotrupids, adults are likely nocturnal burrowers. The subfamily is known for constructing burrows in soil, though specific behavioral details for B. biplagiatum are not documented.

As a member of the Geotrupidae, this species likely contributes to soil aeration and nutrient cycling through its burrowing activities. The family is generally associated with decomposition processes, though bolboceratines are less directly tied to dung than some other geotrupid subfamilies.

• Bolbocerosoma tumefactumAnother species in the same genus with overlapping distribution in the central United States; distinguished by differences in pronotal and elytral sculpture
• Eucanthus spp.Related bolboceratine genus with similar body form and burrowing habits; Eucanthus species typically have more pronounced sexual dimorphism in horn development

• Geotrupidae
• Bolboceratinae
• scarab beetle
• earth-boring beetle
• Nearctic
• Great Plains
• burrowing beetle
• soil-dwelling

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life
• Geotrupidae | Beetles In The Bush
• Bibliography | Beetles In The Bush