Common maple aphid vs Eurasian red squirrel

Periphyllus testudinaceus compared with Sciurus vulgaris

Key Differences

• Common maple aphid is Not Evaluated while Eurasian red squirrel is Least Concern.

Taxonomic Classification

Rank	Common maple aphid	Eurasian red squirrel
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Insecta (昆蟲綱)	Mammalia (哺乳動物)
Order	Hemiptera (半翅目)	Rodentia (啮齿目)
Family	Aphididae	Sciuridae (Squirrels)
Genus	Periphyllus	Sciurus (Tree Squirrels)
Species	Periphyllus testudinaceus	Sciurus vulgaris

Evolutionary Relationship

Common maple aphid and Eurasian red squirrel share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Common maple aphid

NE — Not Evaluated

Eurasian red squirrel

LC — Least Concern

Physical Characteristics

Attribute	Common maple aphid	Eurasian red squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common maple aphid

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Eurasian red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Georgia) and Europe (5 countries).

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.

Eurasian red squirrel

欧亚红松鼠（Sciurus vulgaris）在IUCN红色名录中被列为无危（LC）物种。在其分布范围内广泛分布且数量丰富，种群稳定，无直接保护关注。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden