LepidopteraOecophoridae – Concealer Moths2 data sources

Crassa unitella

This record describes Crassa unitella (species). Recorded family: Oecophoridae. Recorded order: Lepidoptera.

Identification and Appearance

Crassa unitella - Crassa unitella

Golden-brown, with contrasting orange head and palps. Larvae- (from late September to May), feed on fungus on and under dead bark. This species is locally common in Southern England, and occurs more scarcely as far North as Lancashire and Yorkshire. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.

Wikipedia reference for Crassa unitella: https://en.wikipedia.org/wiki/Crassa unitella.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Gelechioidea
Family
Oecophoridae (Concealer Moths)
Genus
Crassa

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

Habitat and Range

Habitat

Well wooded areas.

Seasonal Activity

Late June to August.

Diet and Behavior

Life History

Larvae- (from late September to May), feed on fungus on and under dead bark.

Additional species information

Recorded status

This species is locally common in Southern England, and occurs more scarcely as far North as Lancashire and Yorkshire. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Crassa unitella. 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.

Explore Lepidoptera families and species →

Photos of Crassa unitella (10)

Crassa unitella - photo 1
Crassa unitella - photo 2
Crassa unitella - photo 3
Crassa unitella - photo 4
Crassa unitella - photo 5
Crassa unitella - photo 6
Crassa unitella - photo 7
Crassa unitella - photo 8

Frequently Asked Questions About Crassa unitella

What is Crassa unitella?

Crassa unitella is a species in the family Oecophoridae, within the order Lepidoptera.

Where is Crassa unitella found?

Habitat: Well wooded areas.

When is Crassa unitella active?

Crassa unitella: seasonal activity - Late June to August..

What is the life cycle of a Crassa unitella?

Larvae- (from late September to May), feed on fungus on and under dead bark.