Blue Chaser vs Four-spotted Chaser

Libellula fulva compared with Libellula quadrimaculata

Key Differences

• Blue Chaser is Endangered while Four-spotted Chaser is Least Concern.

Taxonomic Classification

Rank	Blue Chaser	Four-spotted Chaser
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Arthropoda (節足動物)	Arthropoda (節足動物)
Class same	Insecta (昆虫)	Insecta (昆虫)
Order same	Odonata (蜻蛉目)	Odonata (蜻蛉目)
Family same	Libellulidae	Libellulidae
Genus same	Libellula	Libellula
Species	Libellula fulva	Libellula quadrimaculata

Evolutionary Relationship

Blue Chaser and Four-spotted Chaser share a common ancestor at the Genus level: Libellula.

Conservation Status

Blue Chaser

EN — Endangered

Four-spotted Chaser

LC — Least Concern

Physical Characteristics

Attribute	Blue Chaser	Four-spotted Chaser
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Chaser

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Four-spotted Chaser

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

Blue Chaser

ルリチョウトンボ（Libellula fulva）はIUCNレッドリストで絶滅危惧（EN）に分類されています。野生での絶滅リスクが高く、個体数が大幅に減少し、生存への継続的な脅威があります。

Four-spotted Chaser

ヨツボシトンボ（Libellula quadrimaculata）はIUCNレッドリストで軽度懸念（LC）に分類される。分布域全体で広く生息しており、個体群は安定していて、差し迫った保全上の懸念はない。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden