LepidopteraGeometridae – Geometrid Moths

Hydriomena crokeri - Hodges#7247

Hydriomena crokeri

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

Identification and Appearance

Hydriomena crokeri - Hodges#7247 - Hydriomena crokeri
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz

Identification notes

Genitalia: ♀ ♂

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

Type locality: Victoria, BC.

Additional species information

Species notes from the sources

Etymology: Hydriomena crokeri Swett, 1910, originally described as a variety of autumnalis Stroms, 1783, was raised to full species status in Barnes & McDunnough (1917).

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Hydriomena crokeri. 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 crokeri - Hodges#7247 (5)

Hydriomena crokeri - Hodges#7247 - photo 1
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi
Hydriomena crokeri - Hodges#7247 - photo 2
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi
Hydriomena crokeri - Hodges#7247 - photo 3
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi
Hydriomena crokeri - Hodges#7247 - photo 4
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi
Hydriomena crokeri - Hodges#7247 - photo 5
Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi

Photo credits: Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi

Frequently Asked Questions About Hydriomena crokeri - Hodges#7247

How big is Hydriomena crokeri - Hodges#7247?

25-28mm

How do you identify Hydriomena crokeri - Hodges#7247?

Genitalia: ♀ ♂

Where is Hydriomena crokeri - Hodges#7247 found?

Range: Type locality: Victoria, BC.

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

Photo credits: Contributed by Jason D. Roberts; Additional contributions by Steve Nanz | Contributed by Jason D. Roberts; Additional contributions by Steve Nanz , JoAnneRusso , Robert H. Biagi. Contributors retain copyright over their individual contributions.