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Species Details

Decodes macdunnoughi

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

SeasonalityIn Alberta the adults fly in September. IdentificationThe acutely-pointed forewing is grey with dark grey banding present in the median and antemedian areas. Fine dark grey to black lines prominently border the dark bands and a faintly visible between bands and towards the apex. A yellowish blotch is present on the costal half of the basal area and a globose whitish mark is present in the centre of the wing just beyond the median band. The hindwing is pale brownish grey.
Scientific Name Decodes macdunnoughi Habitat Any habitat with Ribes sp. like aspen parkland and the boreal forest. Seasonality In Alberta the adults fly in September. Identification
The acutely-pointed forewing is grey with dark grey banding present in the median and antemedian areas. Fine dark grey to black lines prominently border the dark bands and a faintly visible between bands and towards…
The acutely-pointed forewing is grey with dark grey banding present in the median and antemedian areas. Fine dark grey to black lines prominently border the dark bands and a faintly visible between bands and towards the apex. A yellowish blotch is present on the costal half of the basal area and a globose whitish mark is present in the centre of the wing just beyond the median band. The hindwing is pale brownish grey.
Life History
Poorly known but in other species of this genus the larvae feed in the spring and go into a pupal diapause through the drier parts of the summer. Pupation occurs in leaf litter or in the soil within a cocoon which is…
Poorly known but in other species of this genus the larvae feed in the spring and go into a pupal diapause through the drier parts of the summer. Pupation occurs in leaf litter or in the soil within a cocoon which is unusual for the subfamily Tortricinae. The ovipositor is modifed to scrape up debris and deposit it on the eggs. (Powell 1980)
Conservation Not of concern. Diet Info Some specimens have been reared from gooseberry (Ribes sp.) (Powell 1980) Range So far only known from Canada; from the Northwest Territories and British Columbia, east to Quebec. Notes This species grades into D. horarianus. (Powell 1980)

Citation

Page Citation for Decodes macdunnoughi

Page Citation

"Species Details - Decodes macdunnoughi, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-27427. Accessed 05 Jul. 2025.

References

Specimen Information

There is 1 specimen of this Species.

1 result plotted on map in 1 marker.
Note: Only records with latitude and longitude coordinates are plotted on map.

BIRD28731 - Decodes macdunnoughi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Winfield Collected ByBird, C. D. Date Collected2005-09-24

Adult Seasonal Distribution