Central Andes Oldfield Mouse vs Common Winter Damsel

Thomasomys contradictus compared with Sympecma fusca

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Common Winter Damsel is Least Concern.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Common Winter Damsel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Odonata (Odonata)
Family	Cricetidae	Lestidae
Genus	Thomasomys	Sympecma
Species	Thomasomys contradictus	Sympecma fusca

Evolutionary Relationship

Central Andes Oldfield Mouse and Common Winter Damsel share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Common Winter Damsel

LC — Least Concern

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Common Winter Damsel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Common Winter Damsel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, and Sweden.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.

Common Winter Damsel

<em>Sympecma fusca</em>, commonly known as the common winter damsel or common spreadwing, is a damselfly in the family Lestidae, classified as Least Concern by the IUCN. It is distributed across temperate Europe, with confirmed records from Belgium, Denmark, Luxembourg, and Sweden, and is one of the very few odonates in Europe that overwinters as an adult. This remarkable strategy distinguishes <em>Sympecma fusca</em> from most other damselflies, which overwinter in aquatic larval stages. Adults emerge in late summer, enter a reproductive diapause, and survive through autumn and winter by seeking sheltered terrestrial refugia such as dense vegetation, bark, or leaf litter. Mating and oviposition occur the following spring, typically from March onward. The species inhabits a range of standing and slow-moving freshwater habitats including ponds, marshes, ditches, and the margins of reed-fringed lakes, where larvae develop in aquatic vegetation. Like all lestid damselflies, adults hold their wings partly open at rest rather than folded over the abdomen as in most other damselflies. Biological traits including average adult lifespan, body length, and mass remain poorly documented in standardized databases, though the adult lifespan spanning overwintering can extend to several months. Ecologically, the common winter damsel contributes to freshwater invertebrate food webs as both a predatory adult and as aquatic larval prey for fish and other predators across its European range.