Bug FAQMather's Springtime Pug
Eupithecia matheri · Order: Lepidoptera · Family: Geometridae
Mather's Springtime Pug moth has forewings about 9 mm long in males and 8.5 to 10 mm in females. Adults fly from late January through early April.
Source: Wikipedia
When you see it
Adults are on the wing from late January to early April.
Source: Wikipedia
Where it is found in the US
Recorded in 19 of 51 states and DC. Most records: Massachusetts, Maryland, Mississippi, Pennsylvania, Georgia, Kentucky, Michigan, New York.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When can I expect to see adult Mather's Springtime Pug moths?
Adults are active from late January through the beginning of April.
Source: Wikipedia
How large are these moths?
Males have forewings about 9 mm long, while females range from 8.5 to 10 mm.
Source: Wikipedia
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Eupithecia_matheri
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.