Bug FAQJohnson's Euchlaena Moth
Euchlaena johnsonaria · Order: Lepidoptera · Family: Geometridae
Also called: Johnson's Euchlaena
Source: Wikipedia
The Johnson's Euchlaena moth has a wingspan of about 3.2 cm and lives in deciduous woodlands across much of North America. Its caterpillars eat leaves of many trees and shrubs, including dogwood, willow, spirea, blueberry, elm, ash and birch, and can harm these plants.
Source: Wikipedia
Size
The moth’s wingspan is about 3.2 cm.
Source: Wikipedia
Where it lives
It lives in deciduous woodlands.
Source: Wikipedia
What it eats
The caterpillars eat leaves of many deciduous trees and shrubs such as dogwood, willow, spirea, blueberry, elm, ash and birch.
Source: Wikipedia
When you see it
Adults fly from May through August.
Source: Wikipedia
Where it is found in the US
Recorded in 46 of 51 states and DC. Most records: Montana, Colorado, Minnesota, Pennsylvania, Massachusetts, Michigan, Ohio, New Jersey.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What trees do the larvae eat?
The caterpillars feed on leaves of dogwood, willow, spirea, blueberry, elm, ash and birch.
Source: Wikipedia
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Euchlaena_johnsonaria
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.