Buff-tailed Mining Bee vs Colombian Oldfield Mouse

Andrena humilis compared with Thomasomys dispar

Key Differences

• Buff-tailed Mining Bee is Extinct while Colombian Oldfield Mouse is Data Deficient.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Buff-tailed Mining Bee

EX — Extinct

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Buff-tailed Mining Bee	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-tailed Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Buff-tailed Mining Bee

The Buff-Tailed Mining Bee (Andrena humilis) is a species in the genus Andrena. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.