LepidopteraNoctuidae – Owlet Moths

Euxoa satis - Hodges#10786

Euxoa satis

This record describes Euxoa satis (species). Recorded family: Noctuidae. Recorded order: Lepidoptera.

Identification and Appearance

Euxoa satis - Hodges#10786 - Euxoa satis
Contributed by John Davis; Additional contributions by Steve Morris

Forewing is dark brown to black, hindwing is dark brown/gray. A form with a lighter ground color occurs in Washington, Oregon, and California with paler shading adjacent to the transverse lines on the forewing and pale shading in the reniform and orbicular spots between the black line and the dark central area. Many Euxoa species are difficult to identify and there is often considerable variation in color within species depending on location. Can be confused with other Euxoa species such as E. infausta and E. tessellata.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Noctuoidea
Family
Noctuidae (Owlet Moths)
Subfamily
Noctuinae
Tribe
Noctuini
Genus
Euxoa

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

Habitat and Range

Habitat

Coniferous forests from low to mid-elevations.

Geographic Range

Western North America from southwestern Alberta and southern British Columbia, south to central Colorado, northern Utah, northern Nevada, and southern California.

Seasonal Activity

Adults found during June, July, August.

Diet and Behavior

Life History

Very little is known of the larval stages in nature.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Euxoa satis. 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 Euxoa satis - Hodges#10786 (5)

Euxoa satis - Hodges#10786 - photo 1
Contributed by John Davis; Additional contributions by Steve Morris
Euxoa satis - Hodges#10786 - photo 2
Contributed by John Davis; Additional contributions by Steve Morris
Euxoa satis - Hodges#10786 - photo 3
Contributed by John Davis; Additional contributions by Steve Morris
Euxoa satis - Hodges#10786 - photo 4
Contributed by John Davis; Additional contributions by Steve Morris
Euxoa satis - Hodges#10786 - photo 5
Contributed by John Davis; Additional contributions by Steve Morris

Photo credits: Contributed by John Davis; Additional contributions by Steve Morris

Frequently Asked Questions About Euxoa satis - Hodges#10786

What is Euxoa satis - Hodges#10786?

Euxoa satis - Hodges#10786 (Euxoa satis) is a species in the family Noctuidae, within the order Lepidoptera.

How big is Euxoa satis - Hodges#10786?

Wingspead from 28-36 mm. Forewing length from 11 to 17 mm.

How do you identify Euxoa satis - Hodges#10786?

Forewing is dark brown to black, hindwing is dark brown/gray. A form with a lighter ground color occurs in Washington, Oregon, and California with paler shading adjacent to the transverse lines on the forewing and pale shading in the reniform and orbicular spots between the black line and the dark central area.

Where is Euxoa satis - Hodges#10786 found?
FeatureDetails
HabitatConiferous forests from low to mid-elevations.
RangeWestern North America from southwestern Alberta and southern British Columbia, south to central Colorado, northern Utah, northern Nevada, and southern California.
When is Euxoa satis - Hodges#10786 active?

Euxoa satis - Hodges#10786: seasonal activity - Adults found during June, July, August..

What is the life cycle of a Euxoa satis - Hodges#10786?

Very little is known of the larval stages in nature.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by John Davis; Additional contributions by Steve Morris. Contributors retain copyright over their individual contributions.