Common NameBlack WitchSeasonalityAlberta records are for late July and August.IdentificationA huge (11-15 cm wingspan) moth with broad dark black-brown pointed wings with purple highlights. The reniform is comma-shaped, with a light blue center. The lower edge of the hindwings has a large black-rimed circle containing two dark spots. Unlike any other Alberta moth; on the wing it looks more like a bat than a moth.
Scientific NameAscalapha odorataCommon Name
Black Witch
Habitat
Wooded areas, including urban areas.
Seasonality
Alberta records are for late July and August.
Identification
A huge (11-15 cm wingspan) moth with broad dark black-brown pointed wings with purple highlights. The reniform is comma-shaped, with a light blue center. The lower edge of the hindwings has a large black-rimed…
A huge (11-15 cm wingspan) moth with broad dark black-brown pointed wings with purple highlights. The reniform is comma-shaped, with a light blue center. The lower edge of the hindwings has a large black-rimed circle containing two dark spots. Unlike any other Alberta moth; on the wing it looks more like a bat than a moth.
Life History
The Black Witch is a common tropical moth that strays north on occasion to southern Canada, including Alberta. Their larval food plants do not occur north of the tropics, and any that stray this far north are doomed. …
The Black Witch is a common tropical moth that strays north on occasion to southern Canada, including Alberta. Their larval food plants do not occur north of the tropics, and any that stray this far north are doomed. They are nocturnal and come to sugar bait.
Conservation
A rare stray from the tropics; no concern.
Diet Info
The larval hosts are tropical legumes in the genera Pithecellobium and Cassia.
Range
As a breeding resident, tropical South America north to Florida and the Gulf States. A rare stray north to southern Canada. Recorded in Alberta north to Edmonton.
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Citation
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Page Citation for Ascalapha odorata
Page Citation
"Species Details - Ascalapha odorata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3869. Accessed 17 Sep. 2024.
References
AuthorCovell, C. V., Jr.
TitleA field guide to the moths of eastern North America.
Publication Date1984
Pages496
AuthorWatson, Allan and Paul E. S. Whalley
TitleThe Dictionary of Butterflies and Moths in color.
Publication Date1983
Specimen Information
There are 2 specimens of this Species.
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2 results plotted on map in 2 markers. Note: Only records with latitude and longitude coordinates are plotted on map.