LepidopteraErebidae

Brown Tiger Moth - Hodges#8139

Spilosoma pteridis

This record describes Spilosoma pteridis (species). Recorded family: Erebidae. Recorded order: Lepidoptera.

Identification and Appearance

Brown Tiger Moth - Hodges#8139 - Spilosoma pteridis
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman

head and thorax rusty orange; forewing dark reddish-brown with blackish shading and faint lines; discal spot black, indistinct hindwing dark charcoal gray with black discal spot and brown fringe

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Noctuoidea
Family
Erebidae
Subfamily
Arctiinae
Tribe
Arctiini
Genus
Spilosoma

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

Habitat and Range

Habitat

moist meadows and clearings in coniferous forests; adults are nocturnal and attracted to light

Geographic Range

British Columbia to Saskatchewan, south to northern California; one record from Manitoba

Seasonal Activity

adults fly in May and June

Diet and Behavior

Diet: larvae feed on leaves of Fireweed ( Epilobium angustifolium ) and other herbaceous plants

Additional species information

Species notes from the sources

Etymology: PTERIDIS: from the Greek "pteris, pteridos" (a fern); I don't know the connection between this species and ferns

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Spilosoma pteridis. 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 Brown Tiger Moth - Hodges#8139 (5)

Brown Tiger Moth - Hodges#8139 - photo 1
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman
Brown Tiger Moth - Hodges#8139 - photo 2
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman
Brown Tiger Moth - Hodges#8139 - photo 3
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman
Brown Tiger Moth - Hodges#8139 - photo 4
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman
Brown Tiger Moth - Hodges#8139 - photo 5
Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman

Photo credits: Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman

Frequently Asked Questions About Brown Tiger Moth - Hodges#8139

What is Brown Tiger Moth - Hodges#8139?

Brown Tiger Moth - Hodges#8139 (Spilosoma pteridis) is a species in the family Erebidae, within the order Lepidoptera.

How big is Brown Tiger Moth - Hodges#8139?

wingspan about 32 mm

How do you identify Brown Tiger Moth - Hodges#8139?

head and thorax rusty orange; forewing dark reddish-brown with blackish shading and faint lines; discal spot black, indistinct hindwing dark charcoal gray with black discal spot and brown fringe

Where is Brown Tiger Moth - Hodges#8139 found?
FeatureDetails
Habitatmoist meadows and clearings in coniferous forests; adults are nocturnal and attracted to light
RangeBritish Columbia to Saskatchewan, south to northern California; one record from Manitoba
What does Brown Tiger Moth - Hodges#8139 eat?

The diet of the Brown Tiger Moth - Hodges#8139 includes larvae feed on leaves of Fireweed ( Epilobium angustifolium ) and other herbaceous plants.

When is Brown Tiger Moth - Hodges#8139 active?

Brown Tiger Moth - Hodges#8139: seasonal activity - adults fly in May and June.

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

Photo credits: Contributed by Robin McLeod; Additional contributions by Bob Patterson , Steve Nanz , ceiseman. Contributors retain copyright over their individual contributions.