LepidopteraGeometridae – Geometrid Moths

Iridopsis emasculatum - Hodges#6589

Iridopsis emasculatum

This record describes Iridopsis emasculatum (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Iridopsis emasculatum - Hodges#6589 - Iridopsis emasculatum
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris

Adult - resembles Bent-line Gray ( Iridopsis larvaria ) but waviness of forewing PM line is more regular and has smaller amplitude, and hindwing PM line is not as sharply bent. Larva - green, yellow, or orange with irregular red bands.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Geometroidea
Family
Geometridae (Geometrid Moths)
Subfamily
Ennominae
Tribe
Boarmiini
Genus
Iridopsis

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

Habitat and Range

Geographic Range

British Columbia south to northern California, Arizona, New Mexico, western Texas.

Seasonal Activity

Single flight from late May until mid-August.

Diet and Behavior

Diet: Larval hosts are woody plants; alder, maple, willow, and blueberry.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Iridopsis emasculatum. 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 Iridopsis emasculatum - Hodges#6589 (5)

Iridopsis emasculatum - Hodges#6589 - photo 1
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris
Iridopsis emasculatum - Hodges#6589 - photo 2
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris
Iridopsis emasculatum - Hodges#6589 - photo 3
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris
Iridopsis emasculatum - Hodges#6589 - photo 4
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris
Iridopsis emasculatum - Hodges#6589 - photo 5
Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris

Photo credits: Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris

Frequently Asked Questions About Iridopsis emasculatum - Hodges#6589

What is Iridopsis emasculatum - Hodges#6589?

Iridopsis emasculatum - Hodges#6589 (Iridopsis emasculatum) is a species in the family Geometridae, within the order Lepidoptera.

How big is Iridopsis emasculatum - Hodges#6589?

Forewing length 15-18 mm.

How do you identify Iridopsis emasculatum - Hodges#6589?

Adult - resembles Bent-line Gray ( Iridopsis larvaria ) but waviness of forewing PM line is more regular and has smaller amplitude, and hindwing PM line is not as sharply bent. Larva - green, yellow, or orange with irregular red bands.

Where is Iridopsis emasculatum - Hodges#6589 found?

Range: British Columbia south to northern California, Arizona, New Mexico, western Texas.

What does Iridopsis emasculatum - Hodges#6589 eat?

The diet of the Iridopsis emasculatum - Hodges#6589 includes Larval hosts are woody plants; alder, maple, willow, and blueberry..

When is Iridopsis emasculatum - Hodges#6589 active?

Iridopsis emasculatum - Hodges#6589: seasonal activity - Single flight from late May until mid-August..

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

Photo credits: Contributed by Robin McLeod; Additional contributions by Randy Hardy , Steve Morris. Contributors retain copyright over their individual contributions.