Brown Diving Beetle vs Common maple aphid

Agabus brunneus compared with Periphyllus testudinaceus

Key Differences

• Brown Diving Beetle is Extinct while Common maple aphid is Not Evaluated.

Taxonomic Classification

Rank	Brown Diving Beetle	Common maple aphid
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Arthropoda (节肢动物门)	Arthropoda (节肢动物门)
Class same	Insecta (昆蟲綱)	Insecta (昆蟲綱)
Order	Coleoptera (鞘翅目)	Hemiptera (半翅目)
Family	Dytiscidae	Aphididae
Genus	Agabus	Periphyllus
Species	Agabus brunneus	Periphyllus testudinaceus

Evolutionary Relationship

Brown Diving Beetle and Common maple aphid share a common ancestor at the Class level: Insecta. (昆蟲綱)

Conservation Status

Brown Diving Beetle

EX — Extinct

Common maple aphid

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Diving Beetle	Common maple aphid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

Common maple aphid

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Brown Diving Beetle

The Brown Diving Beetle (Agabus brunneus) is a species in the genus Agabus. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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 1 countries:

🇸🇪 Sweden