INSECTS

Harris's Three-Spot

Harrisimemna trisignata

Insects

Native

30–36 mmWingspan

Butterfly or moth in the family Noctuidae with a wingspan of 30–36 mm. Feeds on plants.

There are 129 observations of Harris's Three-Spot in Québec, mostly in Abitibi-Témiscamingue, Outaouais and Montérégie, and it has been reported in 14 of the 17 regions. They peak in June and become rare from September to May.

Through the year

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Where to see it

Abitibi-Témiscamingue30
Outaouais23
Montérégie16
Estrie13
Capitale-Nationale12
Saguenay–Lac-Saint-Jean9
Laurentides7
Lanaudière6
Mauricie4
Gaspésie–Îles-de-la-Madeleine3
Bas-Saint-Laurent3
Chaudière-Appalaches1
Montréal1
Côte-Nord1

What the caterpillar eats

White meadowsweetSpiraea alba

Japanese tree lilacSyringa reticulata

Common lilacSyringa vulgaris

ButtonbushCephalanthus occidentalis

Northern bush-honeysuckleDiervilla lonicera

SteeplebushSpiraea tomentosa

Common winterberryIlex verticillata

Similar species

Owl-eyed Bird Dropping MothCerma cora