LepidopteraGeometridae – Geometrid Moths

Johnson's Euchlaena - Hodges#6729

Euchlaena johnsonaria

This record describes Euchlaena johnsonaria (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Johnson's Euchlaena - Hodges#6729 - Euchlaena johnsonaria
Contributed by Lynette Elliott; Additional contributions by Steve Nanz , Robin McLeod , Mike Quinn , Jason D. Roberts , Maury Heiman , JoAnneRusso , Steve Morris

Ground colour varies from light to dark rust-brown, AM and PM line thin and well defined, median line diffuse. Most specimens have diffuse black spots in the forewing subterminal space (but may be without any black at all). Similar to E. madusaria , which has a smooth rather than serrate forewing edge. E. johnsonaria has evenly deep serrations on the hindwing edge, obtusaria has the third notch conspicuously deeper; hindwing discal spot absent or faint in johnsonaria , well-defined in obtusaria . see taxonomic discussion by EOL

Classification

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

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

Habitat and Range

Habitat

Deciduous wooded areas

Geographic Range

Map - Southern coastal BC east to Nova Scotia, south to NJ, MO and OR (McGuffin 1981).

Seasonal Activity

May-Aug (BG data)

Diet and Behavior

Diet: Larvae are apparently generalists on deciduous trees and shrubs, including dogwood (Cornus), willow (Salix), Spiraea, Vaccinium, elm (Ulmus), ash (Fraxinus), and birch (Betula) (McGuffin 1981).

Life History

McGuffin (1981) describes the larva in detail. The adults are attracted to lights

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Euchlaena johnsonaria. 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 Johnson's Euchlaena - Hodges#6729 (2)

Johnson's Euchlaena - Hodges#6729 - photo 1
Contributed by Lynette Elliott; Additional contributions by Steve Nanz , Robin McLeod , Mike Quinn , Jason D. Roberts , Maury Heiman , JoAnneRusso , Steve Morris
Johnson's Euchlaena - Hodges#6729 - photo 2
Contributed by Lynette Elliott; Additional contributions by Steve Nanz , Robin McLeod , Mike Quinn , Jason D. Roberts , Maury Heiman , JoAnneRusso , Steve Morris

Photo credits: Contributed by Lynette Elliott; Additional contributions by Steve Nanz , Robin McLeod , Mike Quinn , Jason D. Roberts , Maury Heiman , JoAnneRusso , Steve Morris

Frequently Asked Questions About Johnson's Euchlaena - Hodges#6729

What is Johnson's Euchlaena - Hodges#6729?

Johnson's Euchlaena - Hodges#6729 (Euchlaena johnsonaria) is a species in the family Geometridae, within the order Lepidoptera.

How do you identify Johnson's Euchlaena - Hodges#6729?

Ground colour varies from light to dark rust-brown, AM and PM line thin and well defined, median line diffuse. Most specimens have diffuse black spots in the forewing subterminal space (but may be without any black at all). Similar to E. madusaria , which has a smooth rather than serrate forewing edge. E. johnsonaria has evenly deep serrations on the hindwing edge, obtusaria has the third notch conspicuously deeper; hindwing discal spot absent or faint in johnsonaria , well-defined in obtusaria .

Where is Johnson's Euchlaena - Hodges#6729 found?
FeatureDetails
HabitatDeciduous wooded areas
RangeMap - Southern coastal BC east to Nova Scotia, south to NJ, MO and OR (McGuffin 1981).
What does Johnson's Euchlaena - Hodges#6729 eat?

The diet of the Johnson's Euchlaena - Hodges#6729 includes Larvae are apparently generalists on deciduous trees and shrubs, including dogwood (Cornus), willow (Salix), Spiraea, Vaccinium, elm (Ulmus), ash (Fraxinus), and birch (Betula) (McGuffin 1981)..

When is Johnson's Euchlaena - Hodges#6729 active?

Johnson's Euchlaena - Hodges#6729: seasonal activity - May-Aug (BG data).

What is the life cycle of a Johnson's Euchlaena - Hodges#6729?

McGuffin (1981) describes the larva in detail. The adults are attracted to lights

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

Photo credits: Contributed by Lynette Elliott; Additional contributions by Steve Nanz , Robin McLeod , Mike Quinn , Jason D. Roberts , Maury Heiman , JoAnneRusso , Steve Morris. Contributors retain copyright over their individual contributions.