LepidopteraSaturniidae – Emperor and Giant Silk Moths2 data sources

Western Sheep Moth

Hemileuca eglanterina

This record describes Hemileuca eglanterina (species). Recorded family: Saturniidae. Recorded order: Lepidoptera.

Identification and Appearance

Western Sheep Moth - Hemileuca eglanterina

The sheep moth, or common sheep moth (Hemileuca eglanterina), is a member of the family Saturniidae of silk moths and is native to western North America. In California, its range is west of the Sierran crest and the mountains of Southern California, ranging near to the coast. The moth is dayflying and appears in summer. It feeds on plants of three genera: Ceanothus, Rhamnus (including coffeeberry), and Rosa. Nuttall's sheep moth and one other species are...

Wikipedia reference for Hemileuca eglanterina: http://en.wikipedia.org/wiki/Sheep_moth.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Bombycoidea
Family
Saturniidae (Emperor and Giant Silk Moths)
Subfamily
Hemileucinae
Tribe
Hemileucini
Genus
Hemileuca (Sheepmoths)

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Hemileuca eglanterina. Species-specific details appear above.

Group overview

Lepidoptera includes approximately 180,000 described species of butterflies and moths. Moths outnumber butterflies roughly 10:1. The monarch butterfly's eastern population has declined by more than 80% since the mid-1990s, and the western population by over 95% since the 1980s. The IUCN lists the migratory monarch as Vulnerable.

Ecological role of the group

Butterflies and moths are essential indicators of ecosystem health. As caterpillars, they are a primary food source for birds - a single nest of blue tit chicks requires ~10,000 caterpillars. Adult moths pollinate many night-blooming plants.

Economic and practical significance of the group

Lepidoptera are critical pollinators. In Europe, grassland butterfly species have declined by almost 50% since the early 1990s. In the UK, three-quarters of butterflies are in decline. In the U.S., five butterfly species have gone extinct since 1950, with 29 listed as endangered.

Recorded sources for this group: IUCN Red List, Xerces Society, USFWS, PNAS, WWF. Imported estimates may describe particular regions or reporting periods.

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Photos of Western Sheep Moth (8)

Western Sheep Moth - photo 1
Western Sheep Moth - photo 2
Western Sheep Moth - photo 3
Western Sheep Moth - photo 4
Western Sheep Moth - photo 5
Western Sheep Moth - photo 6
Western Sheep Moth - photo 7
Western Sheep Moth - photo 8