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Species Details
Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
Common NameStriped Granite
SeasonalityLate May to early August, peaking in mid to late June.
IdentificationLight grey in colour, with a whitish ground colour; three black wedges along the forewing costa, sometimes with a fourth subapical wedge. Forewing AM, PM and median band developed equally, not dark and bold. Distinguished by the absence of the bold AM and PM lines, and a lighter ground colour than most other Digrammia, giving it a more contrasting appearance.
Scientific Name
Digrammia denticulata
Common Name
Striped Granite
Habitat
Dry woodlands and aspen parkland.
Seasonality
Late May to early August, peaking in mid to late June.
Identification
Light grey in colour, with a whitish ground colour; three black wedges along the forewing costa, sometimes with a fourth subapical wedge. Forewing AM, PM and median band developed equally, not dark and bold.…
Light grey in colour, with a whitish ground colour; three black wedges along the forewing costa, sometimes with a fourth subapical wedge. Forewing AM, PM and median band developed equally, not dark and bold. Distinguished by the absence of the bold AM and PM lines, and a lighter ground colour than most other Digrammia, giving it a more contrasting appearance.
Life History
The life history and immature stages are incompletely known; the egg and first instar larva are described by McGuffin (1972). Adults come to light. Handfield (1999) states that this is a species of open, mesic…
The life history and immature stages are incompletely known; the egg and first instar larva are described by McGuffin (1972). Adults come to light. Handfield (1999) states that this is a species of open, mesic woodlands and bogs, but it in Alberta it occurs in much drier habitats. Perhaps more than one species is included under this name.
Conservation
Not of concern.
Diet Info
No information available.
Range
Yukon to Ontario, south to CA and IL (McGuffin 1972). Despite the wide distribution of this species, records are lacking for much of boreal transcontinental Canada.
Citation
Page Citation for Digrammia denticulata
Page Citation
"Species Details - Digrammia denticulata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search-test.museums.ualberta.ca/g/2-4623/9-15511. Accessed 28 Sep. 2025.
References
Author
McGuffin, W. C.
Title
Guide to the Geometridae of Canada. II. Subfamily Ennominae. 1.
Publication Date
1972
Series Title
Memoirs of the Entomological Society of Canada
Volume
86
Pages
159
Author
Handfield, L.
Title
Le guide des papillons du Quebec.
Publication Date
1999
Pages
536
Specimen Information
There are 109 specimens of this Species.
UASM9361 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Banff
Collected BySalt, George
Date Collected1920-07-27
UASM9362 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Waterton Park
Collected ByStrickland, Edgar H.
Date Collected1923-07-10
UASM9476 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hillcrest
Date Collected1919-06-20
UASM9477 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-03
UASM9478 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1938-06-18
UASM9479 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hillcrest
Date Collected1922-06-25
UASM9480 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1933-06-03
UASM9481 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hillcrest
Collected ByBowman, K.
Date Collected1922-06-25
UASM9482 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1923-06-04
UASM9483 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lethbridge
Collected ByBowman, K.
Date Collected1923-06-05
UASM9484 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hillcrest
Date Collected1922-06-25
UASM9485 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1942-07-07
UASM9486 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1920-06-28
UASM9487 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-05
UASM9488 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1934-05-24
UASM9489 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByMackie, Donald
Date Collected1918-06-18
UASM9490 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hillcrest
Collected ByBowman, K.
Date Collected1922-06-25
UASM9492 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Red Deer
Collected ByCrosby, G. C. S.
Date Collected1922-06-03
UASM9493 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-05
UASM9495 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1936-08-04
UASM9497 - Digrammia denticulata
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1933-06-14