Dickschalige Tellmuschel vs Common maple aphid

Arcopagia crassa compared with Periphyllus testudinaceus

Key Differences

• Dickschalige Tellmuschel is Vulnerable while Common maple aphid is Not Evaluated.

Taxonomic Classification

Rank	Dickschalige Tellmuschel	Common maple aphid
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Arthropoda (Gliederfüßer)
Class	Bivalvia (Muscheln)	Insecta (Insekten)
Order	Cardiida (Cardiida)	Hemiptera (Schnabelkerfe)
Family	Tellinidae	Aphididae
Genus	Arcopagia	Periphyllus
Species	Arcopagia crassa	Periphyllus testudinaceus

Evolutionary Relationship

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

Conservation Status

Dickschalige Tellmuschel

VU — Vulnerable

Common maple aphid

NE — Not Evaluated

Physical Characteristics

Attribute	Dickschalige Tellmuschel	Common maple aphid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dickschalige Tellmuschel

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common maple aphid

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Dickschalige Tellmuschel

The Blunt tellin (Arcopagia crassa) is a species in the genus Arcopagia. It is currently classified as Vulnerable 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