Colombian Oldfield Mouse vs Small Sandpit Mining Bee

Thomasomys dispar compared with Andrena argentata

Key Differences

• Colombian Oldfield Mouse is Data Deficient while Small Sandpit Mining Bee is Near Threatened.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	Small Sandpit Mining Bee
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Hymenoptera (Ants, Bees & Wasps)
Family	Cricetidae	Andrenidae
Genus	Thomasomys	Andrena
Species	Thomasomys dispar	Andrena argentata

Evolutionary Relationship

Colombian Oldfield Mouse and Small Sandpit Mining Bee share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

Small Sandpit Mining Bee

NT — Near Threatened

Physical Characteristics

Attribute	Colombian Oldfield Mouse	Small Sandpit Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Small Sandpit Mining Bee

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and montane grasslands and shrublands within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Denmark, Ethiopia, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.