Bug FAQOwen's Angle
Macaria oweni · Order: Lepidoptera · Family: Geometridae
Also called: Owen's Angle Moth
Owen's angle moth (Macaria oweni) belongs to the Geometridae family. Its wingspan is about 23 mm and adults fly from June to mid-July in Alberta. The caterpillars feed on tamarack larch (Larix laricina).
Source: Wikipedia
Size
The moth’s wingspan measures roughly 23 mm.
Source: Wikipedia
Where it lives
It lives across North America from Newfoundland west to central Alberta and south to northern New England.
Source: Wikipedia
What it eats
Larvae eat the needles of the tamarack larch (Larix laricina).
Source: Wikipedia
Life cycle
There is probably one generation each year.
Source: Wikipedia
When you see it
Adults are on the wing from June through mid-July in Alberta.
Source: Wikipedia
Where it comes from
Its native range covers the same North American region from Newfoundland to central Alberta and down to northern New England.
Source: Wikipedia
Where it is found in the US
Recorded in 10 of 51 states and DC. Most records: Michigan, Minnesota, New Hampshire, Maine, Massachusetts, Wisconsin, Pennsylvania, Vermont.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When are Owen's angle moths active?
Adults fly from early June to mid-July, at least in Alberta.
Source: Wikipedia
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Macaria_oweni
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-28 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-28.