Johnson's Euchlaena - Hodges#6729
Euchlaena johnsonaria
This record describes Euchlaena johnsonaria (species). Recorded family: Geometridae. Recorded order: Lepidoptera.
Identification and Appearance

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.
Photos of Johnson's Euchlaena - Hodges#6729 (2)
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?
| Feature | Details |
|---|---|
| Habitat | Deciduous wooded areas |
| Range | Map - 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
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