La Hausse-Queue blanche, le Courtaud vs Hespérie délicate

Clostera curtula compared with Ancyloxypha numitor

Taxonomic Classification

Rank	La Hausse-Queue blanche, le Courtaud	Hespérie délicate
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Arthropoda (arthropodes)	Arthropoda (arthropodes)
Class same	Insecta (insecte)	Insecta (insecte)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family	Notodontidae	Hesperiidae
Genus	Clostera	Ancyloxypha
Species	Clostera curtula	Ancyloxypha numitor

Evolutionary Relationship

La Hausse-Queue blanche, le Courtaud and Hespérie délicate share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

La Hausse-Queue blanche, le Courtaud

LC — Least Concern

Hespérie délicate

LC — Least Concern

Physical Characteristics

Attribute	La Hausse-Queue blanche, le Courtaud	Hespérie délicate
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

La Hausse-Queue blanche, le Courtaud

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Hespérie délicate

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

La Hausse-Queue blanche, le Courtaud

The Chocolate-tip (Clostera curtula) is a moth in the family Notodontidae (prominent moths), distributed widely across the temperate Palaearctic region from western Europe through central Asia. Adult moths are medium-sized with a characteristic chocolate-brown or reddish-brown distal area on the forewings that contrasts with the pale basal area — a pattern from which the common name is derived. The wings are held in a tent-like roof over the body at rest, which, combined with the hairy thorax, creates a convincing bark-like camouflage that provides protection from visually hunting predators during daylight hours. The larvae feed on the leaves of various willows (Salix), poplars (Populus), and aspens — trees common in riparian and lowland habitats throughout the species' range. Like other notodontids, larvae may be gregarious in early instars, feeding together before dispersing for later instars. The species produces two or more generations per year in warmer parts of its range, overwintering as a pupa in a cocoon on or in the ground. The IUCN classifies the Chocolate-tip as Least Concern; it is a moderately common and widespread species across Europe and Asia wherever suitable Salix and Populus host trees occur. It is attracted to light traps and is regularly recorded in moth surveys.

Hespérie délicate

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.