brittlestar vs Common maple aphid

Amphiura chiajei compared with Periphyllus testudinaceus

Key Differences

• brittlestar is Least Concern while Common maple aphid is Not Evaluated.

Taxonomic Classification

Rank	brittlestar	Common maple aphid
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Echinodermata (Stachelhäuter)	Arthropoda (Gliederfüßer)
Class	Ophiuroidea (Schlangensterne)	Insecta (Insekten)
Order	Amphilepidida (Amphilepidida)	Hemiptera (Schnabelkerfe)
Family	Amphiuridae	Aphididae
Genus	Amphiura	Periphyllus
Species	Amphiura chiajei	Periphyllus testudinaceus

Evolutionary Relationship

brittlestar and Common maple aphid share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

brittlestar

LC — Least Concern

Common maple aphid

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar	Common maple aphid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Common maple aphid

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

brittlestar

The Brittlestar (Amphiura chiajei) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden