LepidopteraGeometridae – Geometrid Moths

Hydriomena exculpata - Hodges#7223

Hydriomena exculpata

This record describes Hydriomena exculpata (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Hydriomena exculpata - Hodges#7223 - Hydriomena exculpata
Contributed by Maury J. Heiman

Hindwing is brownish with a dark discal spot and angled postmedial line. Photo from Libby & Rick Avis of a specimen identified by DNA

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Geometroidea
Family
Geometridae (Geometrid Moths)
Subfamily
Larentiinae
Tribe
Hydriomenini
Genus
Hydriomena

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

Habitat and Range

Geographic Range

Across all of southern Canada and south in the Coast Range to Califonia and the Rocky Mountains of Colorado; Alaska. (Type locality: Ketchikan, Alaska) * Known in the Southern Appalachians from a single specimen collected on the top of Mount Mitchell.

Seasonal Activity

Adults fly from May through June in Alaska and later in areas further south.

Diet and Behavior

Life History

Appears to be single brooded throughout the range.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Hydriomena exculpata. 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 Hydriomena exculpata - Hodges#7223 (5)

Hydriomena exculpata - Hodges#7223 - photo 1
Contributed by Maury J. Heiman
Hydriomena exculpata - Hodges#7223 - photo 2
Contributed by Maury J. Heiman
Hydriomena exculpata - Hodges#7223 - photo 3
Contributed by Maury J. Heiman
Hydriomena exculpata - Hodges#7223 - photo 4
Contributed by Maury J. Heiman
Hydriomena exculpata - Hodges#7223 - photo 5
Contributed by Maury J. Heiman

Photo credits: Contributed by Maury J. Heiman

Frequently Asked Questions About Hydriomena exculpata - Hodges#7223

What is Hydriomena exculpata - Hodges#7223?

Hydriomena exculpata - Hodges#7223 (Hydriomena exculpata) is a species in the family Geometridae, within the order Lepidoptera.

How big is Hydriomena exculpata - Hodges#7223?

wingspan 30-34 mm

How do you identify Hydriomena exculpata - Hodges#7223?

Hindwing is brownish with a dark discal spot and angled postmedial line. Photo from Libby & Rick Avis of a specimen identified by DNA

Where is Hydriomena exculpata - Hodges#7223 found?

Range: Across all of southern Canada and south in the Coast Range to Califonia and the Rocky Mountains of Colorado; Alaska. (Type locality: Ketchikan, Alaska) * Known in the Southern Appalachians from a single specimen collected on the top of Mount Mitchell.

When is Hydriomena exculpata - Hodges#7223 active?

Hydriomena exculpata - Hodges#7223: seasonal activity - Adults fly from May through June in Alaska and later in areas further south..

What is the life cycle of a Hydriomena exculpata - Hodges#7223?

Appears to be single brooded throughout the range.

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

Photo credits: Contributed by Maury J. Heiman. Contributors retain copyright over their individual contributions.