10-spot ladybird vs Common maple aphid

Adalia decempunctata compared with Periphyllus testudinaceus

Key Differences

10-spot ladybird is Least Concern while Common maple aphid is Not Evaluated.

Taxonomic Classification

Rank	10-spot ladybird	Common maple aphid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Coleoptera (Beetles)	Hemiptera (Hemiptera)
Family	Coccinellidae	Aphididae
Genus	Adalia	Periphyllus
Species	Adalia decempunctata	Periphyllus testudinaceus

Evolutionary Relationship

10-spot ladybird and Common maple aphid share a common ancestor at the Class level: Insecta. (Insects)

View Class: Insecta

Conservation Status

10-spot ladybird

LC — Least Concern

Common maple aphid

NE — Not Evaluated

Physical Characteristics

Attribute	10-spot ladybird	Common maple aphid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

10-spot ladybird

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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.

10-spot ladybird

The 10-spot ladybird (Adalia decempunctata) is a species in the genus Adalia. It is currently classified as Least Concern on the IUCN Red List. It is found across Belgium, Denmark, Norway, and 2 other countries, inhabiting diverse 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.