Species Details

Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

IdentificationMedium-size (3.0 – 3.7 cm wingspan) moths with moderately pointed forewings. Mildly sexually dimorphic, with males brown and females red-brown or pink. Forewings pale brown (males) or pink (females), crossed by a narrow slightly curved darker median band. The antemedian and postmedian lines and to a lesser degree the terminal line marked by a series of dark dots or spots where they cross the veins. Hindwings paler, almost white, with a dark discal dot and the postmedian line marked by a series of dots at the veins. Both wings lightly dusted with darker scales.

Scientific Name Thallophaga hyperborea Habitat Frequents mesic coniferous forests. Identification
Medium-size (3.0 – 3.7 cm wingspan) moths with moderately pointed forewings. Mildly sexually dimorphic, with males brown and females red-brown or pink. Forewings pale brown (males) or pink (females), crossed by a…
Medium-size (3.0 – 3.7 cm wingspan) moths with moderately pointed forewings. Mildly sexually dimorphic, with males brown and females red-brown or pink. Forewings pale brown (males) or pink (females), crossed by a narrow slightly curved darker median band. The antemedian and postmedian lines and to a lesser degree the terminal line marked by a series of dark dots or spots where they cross the veins. Hindwings paler, almost white, with a dark discal dot and the postmedian line marked by a series of dots at the veins. Both wings lightly dusted with darker scales.
Life History
Adults are nocturnal and come to light. In BC two broods, likely only one in AB. Larvae are innocuous solitary defoliators. They are described by McGuffin (op cit.), and illustrated in color by Duncan (2006). They…
Adults are nocturnal and come to light. In BC two broods, likely only one in AB. Larvae are innocuous solitary defoliators. They are described by McGuffin (op cit.), and illustrated in color by Duncan (2006). They overwinter as pupae buried in the soil (Duncan, op. cit.).
Diet Info
The primary larval host in Canada is western hemlock (Tsuga), but it also feeds on Douglas fir (Pseudotsuga), Red cedar (Thuja) and firs (Abies), with fewer records from willow (Salix) and alder (Alnus) and other…
The primary larval host in Canada is western hemlock (Tsuga), but it also feeds on Douglas fir (Pseudotsuga), Red cedar (Thuja) and firs (Abies), with fewer records from willow (Salix) and alder (Alnus) and other conifers (Prentice, 1963; McGuffin, 1987).
Range Alaska panhandle and the Queen Charlotte Islands south to California, east to extreme southwestern AB.

Citation

Page Citation for Thallophaga hyperborea

Page Citation

"Species Details - Thallophaga hyperborea, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6203. Accessed 26 Feb. 2024.

Authorship

Name Anweiler, G. G.
Role species page author
Date 2007

References

Specimen Information

There are 6 specimens of this Species.

6 results plotted on map in 4 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM59627 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Window Mountain Lake Collected ByPike, E. M. Date Collected2003-07-10

UASM59727 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Gabriola Island, Taylor Bay Collected ByAnweiler, G. G. Date Collected1988-03-06

UASM59728 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Gabriola Island, Taylor Bay Collected ByAnweiler, G. G. Date Collected1987-03-13

UASM59729 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Gabriola Island, Taylor Bay Collected ByAnweiler, G. G. Date Collected1987-03-13

UASM99143 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Cranbrook Collected ByJanz, L. Date Collected1998-05-06

UASM103614 - Thallophaga hyperborea

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Willmore Wilderness Park, Pauline Creek Collected ByMacaulay, D. A.; Hilchie, G. Date Collected2007-07-12

Adult Seasonal Distribution