Species Details

Syngrapha borea

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

SeasonalityAdults have been collected in Alberta from mid-July through mid-August. IdentificationA medium-size moth (3.1-3.4 cm wingspan) with dark grey forewings and yellow hindwings. The forewings are dark brownish-grey except for the median area below the sigma, which is a contrasting large red-black block. Stigma is a thin, silver shallow U-shape, usually with a distal extension or satellite spot. Hindwings are bright yellow with a black terminal band. The large thoracic hair tuft is mostly red-brown. Antennae are simple and both the sexes are similar. Borea is very similar to several other Syngrapha species, in particular S. diasema and S. orophila. Diasema has pale buff, not yellow, hindwings. Orophila is usually a bit larger, with lighter grey forewings, and a grey instead of red-brown thoracic hair tuft. The stigma shape in orophila is a deeper U with a hook or sharp angle in the lower distal corner. Questionable specimens can be identified by examining the genitalia. Male borea have a single cornutus on the vesica (2 in orophila), and females have a smooth or wrinkled (not grooved or notched) plate on the ostium bursae. The other Syngrapha species with yellow hindwings (ignea, microgamma, montana and alticola) are much smaller or have different color forewings and/or stigma shapes.

Scientific Name Syngrapha borea Habitat Subalpine and montane coniferous forest. Seasonality Adults have been collected in Alberta from mid-July through mid-August. Identification
A medium-size moth (3.1-3.4 cm wingspan) with dark grey forewings and yellow hindwings. The forewings are dark brownish-grey except for the median area below the sigma, which is a contrasting large red-black block. …
A medium-size moth (3.1-3.4 cm wingspan) with dark grey forewings and yellow hindwings. The forewings are dark brownish-grey except for the median area below the sigma, which is a contrasting large red-black block. Stigma is a thin, silver shallow U-shape, usually with a distal extension or satellite spot. Hindwings are bright yellow with a black terminal band. The large thoracic hair tuft is mostly red-brown. Antennae are simple and both the sexes are similar. Borea is very similar to several other Syngrapha species, in particular S. diasema and S. orophila. Diasema has pale buff, not yellow, hindwings. Orophila is usually a bit larger, with lighter grey forewings, and a grey instead of red-brown thoracic hair tuft. The stigma shape in orophila is a deeper U with a hook or sharp angle in the lower distal corner. Questionable specimens can be identified by examining the genitalia. Male borea have a single cornutus on the vesica (2 in orophila), and females have a smooth or wrinkled (not grooved or notched) plate on the ostium bursae. The other Syngrapha species with yellow hindwings (ignea, microgamma, montana and alticola) are much smaller or have different color forewings and/or stigma shapes.
Life History The adults are crepuscular as well as nocturnal, and come to lights. Host plant(s) and larvae are unknown. There is a single brood each year. Conservation A fairly common, widespread species. Diet Info Unknown. Range
Borea occurs along the south coast of Greenland, and in western North America (disjunct ?). In western North America, it has been found from central Alaska, east to the Northwest Territories, south of Great Bear Lake…
Borea occurs along the south coast of Greenland, and in western North America (disjunct ?). In western North America, it has been found from central Alaska, east to the Northwest Territories, south of Great Bear Lake and southward in the mountains to southern Alberta and British Columbia.

Citation

Page Citation for Syngrapha borea

Page Citation

"Species Details - Syngrapha borea, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1138. Accessed 26 Sep. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Noctuoidea Family Noctuidae Subfamily Plusiinae Genus Syngrapha Species Syngrapha borea
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum