Bug FAQLorquin's Angle
Macaria lorquinaria · Order: Lepidoptera · Family: Geometridae
Lorquin's angle is a geometrid moth found in North America. Its caterpillars feed on red alder, willow and other birch, pine and willow family plants. It may be mistaken for Tephrina lorquinaria or Halia tripunctaria.
Source: Wikipedia
How to recognize it
Lorquin's angle (Macaria lorquinaria) belongs to the family Geometridae.
Source: Wikipedia
Where it lives
It occurs in North America.
Source: Wikipedia
What it eats
The larvae feed on red alder, willow and other plants in the birch, pine and willow families.
Source: Wikipedia
Where it comes from
Its native range is North America.
Source: Wikipedia
Lookalikes
It can be confused with Tephrina lorquinaria. It also resembles Halia tripunctaria.
Source: Wikipedia
Where it is found in the US
Recorded in 8 of 51 states and DC. Most records: Washington, Oregon, California, Idaho, Montana, Utah, Wyoming, Colorado.
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
More photos
Questions people ask
What plants do the larvae eat?
The caterpillars feed on red alder, willow and other members of the birch, pine and willow families.
Source: Wikipedia
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Speranza_lorquinaria
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.