Brown eagle-ray vs Common Least Skipper

Aetomylaeus milvus compared with Ancyloxypha numitor

Key Differences

• Brown eagle-ray is Endangered while Common Least Skipper is Least Concern.

Taxonomic Classification

Rank	Brown eagle-ray	Common Least Skipper
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Arthropoda (สัตว์ขาปล้อง)
Class	Elasmobranchii	Insecta (แมลง)
Order	Myliobatiformes (อันดับปลากระเบน)	Lepidoptera (ผีเสื้อ)
Family	Myliobatidae	Hesperiidae
Genus	Aetomylaeus	Ancyloxypha
Species	Aetomylaeus milvus	Ancyloxypha numitor

Evolutionary Relationship

Brown eagle-ray and Common Least Skipper share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Brown eagle-ray

EN — Endangered

Common Least Skipper

LC — Least Concern

Physical Characteristics

Attribute	Brown eagle-ray	Common Least Skipper
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Least Skipper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Common Least Skipper

The Common Least Skipper (<em>Ancyloxypha numitor</em>) is a small butterfly in the family Hesperiidae, classified as Least Concern on the IUCN Red List. It is native to Canada and the United States, where it typically inhabits virtually all terrestrial and freshwater habitats within its range, showing a particular affinity for moist, grassy areas near water. The species is among the smallest skippers in North America, characterized by orange and brown wing coloration and a rapid, low-flying flight pattern close to vegetation. Adults typically nectar on small flowers while larvae feed on grasses, particularly those in wet meadows, marshes, stream margins, and disturbed grassy areas. The Common Least Skipper is frequently observed in wetland margins, wet prairies, and roadsides with rank grass growth. Its wide distribution across North America and habitat generalism across moist grassland and wetland types support its stable population and Least Concern conservation status. Biological traits of this species remain poorly documented in the scientific literature.