| Thallophaga hyperborea | |
|---|---|
|   | |
| Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Lepidoptera | 
| Family: | Geometridae | 
| Genus: | Thallophaga | 
| Species: | T. hyperborea | 
| Binomial name | |
| Thallophaga hyperborea (Hulst, 1900) | |
| Synonyms | |
| Tetracis hyperboreaHulst, 1900 | |
Thallophaga hyperborea, the northern thallophaga, [1] is a moth of the family Geometridae. The species was described by George Duryea Hulst in 1900. [2] [3] It occurs in the Western North America, from California (USA) to British Columbia (Canada) [1] [3] and the Alaskan panhandle. [4]
The wingspan is 30–37 mm (1.2–1.5 in). [4] The adults emerge in April to May. [1] [5] 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. [1] [4] [5]