Canary fly vs common sea hare

Edwardsiana crataegi compared with Aplysia punctata

Taxonomic Classification

Rank	Canary fly	common sea hare
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Hemiptera (Hemiptera)	Aplysiida (Aplysiida)
Family	Cicadellidae	Aplysiidae
Genus	Edwardsiana	Aplysia
Species	Edwardsiana crataegi	Aplysia punctata

Evolutionary Relationship

Canary fly and common sea hare share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Canary fly

LC — Least Concern

common sea hare

LC — Least Concern

Physical Characteristics

Attribute	Canary fly	common sea hare
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Canary fly

Habitat

Inhabits montane grasslands and shrublands and deserts and xeric shrublands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (4 countries), Europe (23 countries), North America (United States), and Oceania and the Pacific (Australia, New Zealand).

common sea hare

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Canary fly

The Canary fly (Edwardsiana crataegi) is a species in the genus Edwardsiana. It is currently classified as Least Concern on the IUCN Red List. Inhabits montane grasslands and shrublands and deserts and xeric shrublands within the Palearctic biogeographic realm.

common sea hare

<em>Aplysia punctata</em>, the common sea hare, is a large opisthobranch sea slug in the family Aplysiidae, order Aplysiida, found in the northeastern Atlantic Ocean and Mediterranean Sea, with confirmed records from Denmark, Norway, Portugal, and Sweden. This species typically inhabits shallow subtidal and intertidal zones with abundant macroalgae, feeding primarily on red and green algae — a diet that influences the color of the defensive purple ink it secretes when threatened. <em>Aplysia punctata</em> is a simultaneous hermaphrodite, capable of acting as both male and female during mating, and often forms mating chains involving multiple individuals. It can reach considerable size among European opisthobranch species, though body dimensions vary considerably with age and feeding conditions. The species is classified as Least Concern by the IUCN, reflecting stable populations across its coastal range. Biological traits for this species remain poorly documented in the scientific literature, including precise average data on lifespan, body length, weight, and detailed seasonal dietary patterns, though its general herbivorous feeding on macroalgae is well established.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden