LepidopteraLasiocampidae – Lappet Moths

Small Eggar

Eriogaster lanestris

This record describes Eriogaster lanestris (species). Recorded family: Lasiocampidae. Recorded order: Lepidoptera.

Identification and Appearance

Small Eggar - Eriogaster lanestris

Eriogaster lanestris, commonly known as the small eggar, is a moth of the Lasiocampidae family that is found across the Palearctic. Unlike many other members of the Lasiocampidae family, the small eggar is a social insect. Historically, only eusocial insects like ants, bees, and termites were thought to exhibit complex social organization and communication systems. However, research since the late 20th century has found that E. lanestris, among a number of other phylogenetically related moth and...

Wikipedia reference for Eriogaster lanestris: https://en.wikipedia.org/wiki/Eriogaster lanestris.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Lasiocampoidea
Family
Lasiocampidae (Lappet Moths)
Subfamily
Lasiocampinae
Tribe
Pinarini
Genus
Eriogaster

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 Eriogaster lanestris. 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 Small Eggar (9)

Small Eggar - photo 1
Small Eggar - photo 2
Small Eggar - photo 3
Small Eggar - photo 4
Small Eggar - photo 5
Small Eggar - photo 6
Small Eggar - photo 7
Small Eggar - photo 8