Bug FAQEupithecia lachrymosa
Eupithecia lachrymosa · Order: Lepidoptera · Family: Geometridae
The adult moth’s wingspan measures about 19 to 24 mm. It occurs in western North America, from central Saskatchewan westward to southern Vancouver Island, and south to California. The caterpillars feed on paper birch, willows, ceanothus and alders.
Source: Wikipedia
Size
The adult moth’s wingspan measures about 19 to 24 mm.
Source: Wikipedia
What it eats
The caterpillars feed on paper birch, willows, ceanothus and alders.
Source: Wikipedia
Where it comes from
It occurs in western North America, from central Saskatchewan westward to southern Vancouver Island, and south to California.
Source: Wikipedia
Where it is found in the US
Recorded in 9 of 51 states and DC. Most records: California, Washington, Montana, Utah, Wyoming, Colorado, Idaho, Oregon.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
Questions people ask
What do the larvae eat?
The caterpillars feed on paper birch, willows, ceanothus and alders.
Source: Wikipedia
Where is Eupithecia lachrymosa found?
It lives in western North America, from central Saskatchewan to southern Vancouver Island and down to California.
Source: Wikipedia
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Eupithecia_lachrymosa
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-26 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-26.