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Species Details
Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityThe Alberta records are all of adults collected in the latter half of July.
IdentificationA medium-size moth (3.0-3.3 cm wingspan). The forewings are dark grey or grey-brown with the lower half of the median area blackish. There is a thin U-shaped silver stigma with a short projection outward from the bottom of the U. Hindwings are pale buff or yellow-brown with a broad dark terminal band. Very similar to S. borea and S. orophila, but those species have yellow instead of buff or yellow-brown hindwings. There is also often a faint median line in diasema, lacking in similar species. The antennae are simple and both the sexes are similar.
Scientific Name
Syngrapha diasema
Habitat
Alpine and subalpine shrub meadows.
Seasonality
The Alberta records are all of adults collected in the latter half of July.
Identification
A medium-size moth (3.0-3.3 cm wingspan). The forewings are dark grey or grey-brown with the lower half of the median area blackish. There is a thin U-shaped silver stigma with a short projection outward from the…
A medium-size moth (3.0-3.3 cm wingspan). The forewings are dark grey or grey-brown with the lower half of the median area blackish. There is a thin U-shaped silver stigma with a short projection outward from the bottom of the U. Hindwings are pale buff or yellow-brown with a broad dark terminal band. Very similar to S. borea and S. orophila, but those species have yellow instead of buff or yellow-brown hindwings. There is also often a faint median line in diasema, lacking in similar species. The antennae are simple and both the sexes are similar.
Life History
Adults are nocturnal and come to light. There is a single brood per year.
Conservation
Rarely collected in Alberta, but in secure habitat.
Diet Info
No Alberta data; elsewhere, Dwarf birch (Betula nana).
Range
Holoarctic. Northern Fennoscandia to Siberia, across Arctic and subarctic. In North America, it has been collected across the arctic and subarctic from Labrador to Central Alaska. It has also been collected on 3…
Holoarctic. Northern Fennoscandia to Siberia, across Arctic and subarctic. In North America, it has been collected across the arctic and subarctic from Labrador to Central Alaska. It has also been collected on 3 occasions in the subalpine in the Nordegg - Cadomin area of Alberta. These are the only records south of the subarctic.
Citation
Page Citation for Syngrapha diasema
Page Citation
"Species Details - Syngrapha diasema, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1139/9-7221. Accessed 04 Jan. 2025.
References
Author
Lafontaine, J. Donald and Robert W. Poole
Title
Noctuoidea : Noctuidae (part) : Plusiinae
Publication Date
1995
Pages
182
Author
Eichlin, Thomas D. and Hugh B. Cunningham
Title
The Plusiinae (Lepidoptera: Noctuidae) of America north of Mexico, emphasizing genitalic and larval morphology.
Publication Date
1978
Pages
122
Specimen Information
There are 65 specimens of this Species.
UASM13547 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Nordegg
Collected ByBowman, K.
Date Collected1921-07-17
UASM13559 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Nordegg
Collected ByBowman, K.
Date Collected1916-07-15
BIRD6646 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Beaverdam Provincial Recreation Area
Collected ByBird, C. D.
Date Collected2004-07-23
UASM78282 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Birch Mountains Wildland Provincial Park, Gardiner Lakes
Collected ByMacaulay, D. A.; Macaulay, S. H.
Date Collected2004-07-09
UASM78283 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Birch Mountains Wildland Provincial Park, Gardiner Lakes
Collected ByMacaulay, D. A.; Macaulay, S. H.
Date Collected2004-07-10
UASM78284 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Birch Mountains Wildland Provincial Park, Gardiner Lakes
Collected ByMacaulay, D. A.; Macaulay, S. H.
Date Collected2004-07-14
UASM78285 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Birch Mountains Wildland Provincial Park, Gardiner Lakes
Collected ByMacaulay, D. A.; Macaulay, S. H.
Date Collected2004-07-14
UASM78286 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Birch Mountains Wildland Provincial Park, Gardiner Lakes
Collected ByMacaulay, D. A.; Macaulay, S. H.
Date Collected2004-07-14
UASM78871 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kakwa Wildland Provincial Park
Collected ByMacaulay, D.; Lawrie, D.
Date Collected2006-07-16
UASM78935 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kakwa Wildland Provincial Park
Collected ByMacaulay, D.; Lawrie, D.
Date Collected2006-07-21
UASM78936 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kakwa Wildland Provincial Park
Collected ByMacaulay, D.; Lawrie, D.
Date Collected2006-07-21
UASM103521 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-21
UASM103522 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park, Beaverdam Creek
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-19
UASM103523 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park, Beaverdam Creek
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-19
UASM170249 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-18
UASM170250 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-18
UASM170251 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-20
UASM170252 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-20
UASM170253 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-24
UASM170254 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1995-07-27
UASM170255 - Syngrapha diasema
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Manitoba, Churchill
Collected ByHensel, H.
Date Collected1999-07-10/1999-07-16