Central Andes Oldfield Mouse vs Common maple aphid

Thomasomys contradictus compared with Periphyllus testudinaceus

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Common maple aphid is Not Evaluated.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Common maple aphid
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Chordata (حبليات)	Arthropoda (مفصليات الأرجل)
Class	Mammalia (ثدييات)	Insecta (حشرات)
Order	Rodentia (قوارض)	Hemiptera (نصفيات الأجنحة)
Family	Cricetidae	Aphididae
Genus	Thomasomys	Periphyllus
Species	Thomasomys contradictus	Periphyllus testudinaceus

Evolutionary Relationship

Central Andes Oldfield Mouse and Common maple aphid share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Common maple aphid

NE — Not Evaluated

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Common maple aphid
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 maple aphid

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Sweden, and United States.

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 maple aphid

<em>Periphyllus testudinaceus</em>, the common maple aphid, is a small sap-sucking insect in the family Aphididae, associated primarily with maple trees of the genus Acer. It is recorded from Denmark, Norway, Sweden, and the United States. This species has not been formally evaluated for IUCN conservation status. The common maple aphid typically forms colonies on the undersides of maple leaves and along young shoots, feeding on phloem sap and potentially causing leaf curling, discoloration, and reduced tree vigor in heavy infestations. Like many aphid species, it produces honeydew as a metabolic byproduct, which attracts ants that may protect the aphid colonies in exchange. The species exhibits complex life cycles that can involve both sexual and asexual reproduction across seasons. Biological traits including body size, average lifespan, and precise dietary specializations beyond maple sap feeding remain incompletely documented. The common maple aphid is part of the broader community of invertebrates dependent on maple trees across temperate Northern Hemisphere regions.