Common NameStriped GraniteSeasonalityLate 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 NameDigrammia denticulataCommon 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.
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Citation
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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.museums.ualberta.ca/g/2-4623. Accessed 14 Aug. 2022.