SeasonalityMay.IdentificationWingspread 15-17 mm. A small, dark brown, short-winged moth with a white PM line on both dorsal fore and hind wings, and a robust body. Similar to Loxostege ephippialis but the latter lacks the white PM lines and instead has a large, dark, wedge-shaped area in the center of the dorsal fore wings.
Scientific NameOstrinia marginalisHabitat
The moths frequent boggy and marsh places, where they fly rapidly close to the ground, often in bright sunlight (Munroe 1976).
Seasonality
May.
Identification
Wingspread 15-17 mm. A small, dark brown, short-winged moth with a white PM line on both dorsal fore and hind wings, and a robust body. Similar to Loxostege ephippialis but the latter lacks the white PM lines and…
Wingspread 15-17 mm. A small, dark brown, short-winged moth with a white PM line on both dorsal fore and hind wings, and a robust body. Similar to Loxostege ephippialis but the latter lacks the white PM lines and instead has a large, dark, wedge-shaped area in the center of the dorsal fore wings.
Life History
Unknown. The short wings, robust body, dark color and reduced eyes are adaptations to a day-flying habit (Munroe 1976).
Conservation
Uncommon. Probably of no concern.
Diet Info
The larvae should be looked for on species of Rumex and Polygonum growing in wet places Munroe (1976).
Range
Newfoundland and Maine west to Alberta, the Northwest Territories and Yukon (Munroe 1976). Type Locality St. Martin's Falls, Albany River, Ontario, as Scopula marginalis. In Alberta, reported from Areas 8 (Red Deer),…
Newfoundland and Maine west to Alberta, the Northwest Territories and Yukon (Munroe 1976). Type Locality St. Martin's Falls, Albany River, Ontario, as Scopula marginalis. In Alberta, reported from Areas 8 (Red Deer), 10 (Edmonton, Wabamun) and 20 (Nordegg) by Bowman (1951) as Pyrausta marginalis.
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Citation
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Page Citation for Ostrinia marginalis
Page Citation
"Species Details - Ostrinia marginalis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6366. Accessed 25 Mar. 2023.