Common Least Skipper vs Glabrous Catsear

Ancyloxypha numitor compared with Hypochaeris glabra

Key Differences

Common Least Skipper is Least Concern while Glabrous Catsear is Critically Endangered.

Taxonomic Classification

Rank	Common Least Skipper	Glabrous Catsear
Kingdom	Animalia (hewan)	Plantae (tumbuhan)
Phylum	Arthropoda (Artropoda)	Magnoliophyta (Flowering Plants)
Class	Insecta (serangga)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Asterales (Daisies & Sunflowers)
Family	Hesperiidae	Asteraceae (Daisy Family)
Genus	Ancyloxypha	Hypochaeris
Species	Ancyloxypha numitor	Hypochaeris glabra

Conservation Status

Common Least Skipper

LC — Least Concern

Glabrous Catsear

CR — Critically Endangered

Physical Characteristics

Attribute	Common Least Skipper	Glabrous Catsear
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Least Skipper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

Glabrous Catsear

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (India, Japan, Taiwan), Europe (5 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.