LepidopteraSaturniidae – Giant Silkworm and Royal Moths

Oslar's Oakworm Moth - Hodges#7722

Anisota oslari

This record describes Anisota oslari (species). Recorded family: Saturniidae. Recorded order: Lepidoptera.

Identification and Appearance

Oslar's Oakworm Moth - Hodges#7722 - Anisota oslari
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy

Larva - last instars are brick red. See photos at Moths of Southeastern Arizona in Internet References. Has been successfully crossed with A. senatoria in the lab. See Peigler & Williams in Print References.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Bombycoidea
Family
Saturniidae (Giant Silkworm and Royal Moths)
Subfamily
Ceratocampinae
Genus
Anisota

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

Habitat and Range

Geographic Range

Southwestern Colorado to west Texas, southern New Mexico and southern Arizona, south into Chihuahua, Mexico. Type locality: Nogales, Santa Cruz County, Arizona (July).

Diet and Behavior

Diet: Larvae are known to feed on oaks, including Mexican blue oak ( Quercus oblongifolia ), scrub oak ( Q. turbinella ), and Emory oak ( Q. emoryi ) ,

Life History

Eggs laid in clusters, young larvae feed gregariously.

Additional species information

Species notes from the sources

Etymology: Named in honor of professional insect collector Ernest J. Oslar, who collected the first specimens.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Anisota oslari. 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 Oslar's Oakworm Moth - Hodges#7722 (5)

Oslar's Oakworm Moth - Hodges#7722 - photo 1
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy
Oslar's Oakworm Moth - Hodges#7722 - photo 2
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy
Oslar's Oakworm Moth - Hodges#7722 - photo 3
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy
Oslar's Oakworm Moth - Hodges#7722 - photo 4
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy
Oslar's Oakworm Moth - Hodges#7722 - photo 5
Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy

Photo credits: Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy

Frequently Asked Questions About Oslar's Oakworm Moth - Hodges#7722

What is Oslar's Oakworm Moth - Hodges#7722?

Oslar's Oakworm Moth - Hodges#7722 (Anisota oslari) is a species in the family Saturniidae, within the order Lepidoptera.

How big is Oslar's Oakworm Moth - Hodges#7722?

Forewing length 2.2-4.0 cm.

How do you identify Oslar's Oakworm Moth - Hodges#7722?

Larva - last instars are brick red. See photos at Moths of Southeastern Arizona in Internet References.

Where is Oslar's Oakworm Moth - Hodges#7722 found?

Range: Southwestern Colorado to west Texas, southern New Mexico and southern Arizona, south into Chihuahua, Mexico. Type locality: Nogales, Santa Cruz County, Arizona (July).

What does Oslar's Oakworm Moth - Hodges#7722 eat?

The diet of the Oslar's Oakworm Moth - Hodges#7722 includes Larvae are known to feed on oaks, including Mexican blue oak ( Quercus oblongifolia ), scrub oak ( Q. turbinella ), and Emory oak ( Q. emoryi ) ,.

What is the life cycle of a Oslar's Oakworm Moth - Hodges#7722?

Eggs laid in clusters, young larvae feed gregariously.

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

Photo credits: Contributed by Tom Bentley; Additional contributions by Vox Sciurorum , Randy Hardy. Contributors retain copyright over their individual contributions.