Bug FAQHollow-spotted Angle
Digrammia gnophosaria · Order: Lepidoptera · Family: Geometridae
Also called: Hollow-spotted Angle Moth
The hollow-spotted angle is a moth in the Geometridae family. Its caterpillars feed on willow trees such as Salix babylonica.
Source: Wikipedia
How to recognize it
Digrammia gnophosaria, called the hollow-spotted angle, belongs to the moth family Geometridae.
Source: Wikipedia
What it eats
The larvae eat willow species, for example Salix babylonica.
Source: Wikipedia
Where it is found in the US
Recorded in 37 of 51 states and DC. Most records: Texas, Oklahoma, Louisiana, Alabama, Ohio, Maryland, Mississippi, Michigan.
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 do the caterpillars of the hollow-spotted angle eat?
The caterpillars feed on willow trees, including Salix babylonica.
Source: Wikipedia
Same family (Geometridae)
Willow BeautyPeribatodes rhomboidaria
Pale BeautyCampaea perlataDamages trees, gardens or crops
Large Lace-border MothScopula limboundataDamages trees, gardens or crops
Riband WaveIdaea aversata
Yellow Shell MothCamptogramma bilineata
Large Maple Spanworm MothProchoerodes lineolaDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Digrammia_gnophosaria
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.