Kebnat
INSECTS

Bruce Spanworm Moth

Operophtera bruceata

Insects
Native
Bruce Spanworm Moth, photo 1 of 5
Bruce Spanworm Moth, Male
Bruce Spanworm Moth, Female
25–30 mmWingspan

Butterfly or moth in the family Geometridae with a wingspan of 25–30 mm.

There are 197 observations of Bruce Spanworm Moth in Québec, mostly in Estrie, Abitibi-Témiscamingue and Gaspésie–Îles-de-la-Madeleine, and it has been reported in 14 of the 17 regions. They peak in October and November.

Through the year

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Where to see it

  1. Estrie43
  2. Abitibi-Témiscamingue36
  3. Gaspésie–Îles-de-la-Madeleine19
  4. Montérégie18
  5. Outaouais18
  6. Capitale-Nationale17
  7. Laurentides15
  8. Montréal11
  9. Bas-Saint-Laurent8
  10. Saguenay–Lac-Saint-Jean7
  11. Chaudière-Appalaches2
  12. Laval1
  13. Centre-du-Québec1
  14. Côte-Nord1

What the caterpillar eats

Quaking aspenPopulus tremuloides
Sugar mapleAcer saccharum
Northern red oakQuercus rubra
American elmUlmus americana
Ash-leaf mapleAcer negundo
Yellow birchBetula alleghaniensis
Paper birchBetula papyrifera
American beechFagus grandifolia
TOXIC
Balsam poplarPopulus balsamifera
PearPyrus communis
Black Hills sprucePicea glauca
ChokecherryPrunus virginiana

Similar species

Winter mothOperophtera brumata
Fall Cankerworm MothAlsophila pometaria
Autumnal MothEpirrita autumnata
Brown-shaded Carpet MothVenusia comptaria
Bicolored SallowSunira bicolorago
Hemlock Looper MothLambdina fiscellaria