Common Least Skipper vs house mouse

Ancyloxypha numitor compared with Mus musculus

Taxonomic Classification

Rank	Common Least Skipper	house mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Hesperiidae	Muridae (Mice & Rats)
Genus	Ancyloxypha	Mus (House Mice)
Species	Ancyloxypha numitor	Mus musculus

Evolutionary Relationship

Common Least Skipper and house mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Least Skipper

LC — Least Concern

house mouse

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Common Least Skipper	house mouse
Diet	—	Omnivore
Average Lifespan	—	2 years
Average Length	—	9 cm
Average Weight	—	20 g

Habitat & Geographic Range

Common Least Skipper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

house mouse

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (9 countries), Asia (13 countries), Europe (41 countries), North America (14 countries), Oceania and the Pacific (12 countries), and South America (10 countries).

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.

house mouse

Among the most widespread and numerous mammals on Earth, house mice originated in South Asia and have accompanied human civilization across every continent except Antarctica. Weighing just 15–25 g, they are highly adaptable omnivores capable of surviving on minimal food and water. As the world's most commonly used laboratory animal, the house mouse has contributed to virtually every branch of biomedical research. They cause significant agricultural damage globally.

Shared Countries

Both species can be found in 2 countries:

🇨🇦 Canada 🇺🇸 United States