The Canary Thorn

Not of concern.

Adults fly from mid June to early July

Yukon and northwestern Saskatchewan south to southwest Alberta and Washington (McGuffin 1987). The distribution of this species is rather enigmatic - it is apparently very rare in the boreal region between the southern mountain and prairie region and the Yukon and extreme northwestern Saskatchewan. The Milliken Lake, SK record in McGuffin (1987) is erroneously shown on the map in northwestern AB.

A mid-size geometrid with a soft yellow ground colour and several marroon-brown, irregular wedges along the forewing costa; occasionally speckled throughout with brown. Unlike any other Alberta moth in appearance.

Dry, open forests and woodlands.

The larva mimics a twig when resting, and pupates among leaves tied together with silk. (McGuffin 1987). Adults come to light. The larva is illustrated by Tatum (2002). http://facweb.furman.edu/~snyderjohn/tatum/210-211.htm

Yukon and northwestern Saskatchewan south to southwest Alberta and Washington (McGuffin 1987). The distribution of this species is rather enigmatic - it is apparently very rare in the boreal region between the southern mountain and prairie region and the Yukon and extreme northwestern Saskatchewan. The Milliken Lake, SK record in McGuffin (1987) is erroneously shown on the map in northwestern AB.

Neoterpes trianguliferata, the canary thorn, is a moth in the family Geometridae. The species was first described by Alpheus Spring Packard in 1871. It is found in North America.

The MONA or Hodges number for Neoterpes trianguliferata is 6860.