Thallophaga hyperborea

Thallophaga hyperborea, the northern thallophaga, is a moth of the family Geometridae. The species was first described by George Duryea Hulst in 1900, and it can be found in the Canadian province of British Columbia.

The wingspan is 30 - 37 mm. The moths fly from April to May depending on the location.

The larvae feed on western hemlock, Douglas fir, red cedar and other firs. The moth is also recorded on willow and alder as well as other conifers.