Black Stubble Lichen vs Common Least Skipper

Calicium abietinum compared with Ancyloxypha numitor

Key Differences

Black Stubble Lichen is Endangered while Common Least Skipper is Least Concern.

Taxonomic Classification

Rank	Black Stubble Lichen	Common Least Skipper
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Arthropoda (Arthropods)
Class	Lecanoromycetes (Lecanoromycetes)	Insecta (Insects)
Order	Caliciales (Caliciales)	Lepidoptera (Butterflies & Moths)
Family	Caliciaceae	Hesperiidae
Genus	Calicium	Ancyloxypha
Species	Calicium abietinum	Ancyloxypha numitor

Conservation Status

Black Stubble Lichen

EN — Endangered

Common Least Skipper

LC — Least Concern

Physical Characteristics

Attribute	Black Stubble Lichen	Common Least Skipper
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Stubble Lichen

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia). 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.

Black Stubble Lichen

The Black Stubble Lichen (Calicium abietinum) is a species in the genus Calicium. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region, found across Colombia, Denmark, Norway, Portugal, Sweden, and more.

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.