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Species Page - Speyeria cybele
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scientific name    Speyeria cybele    

common name     Great Spangled Fritillary

habitat
Aspen parkland, shrubby prairie coulees, open woods of the fotthills and southern boreal.

seasonality
One flight per year, most common in early to late July.

identification
Our largest fritillary, usually with a wingspan over 65 mm. Unlike some of the other fritillaries, cybele is relatively easy to distinguish by the contrasty, dark basal half of the dorsal hindwing; the basal dark area is smaller and more diffuse in other Speyeria. Cybele also lacks the black, angled spot nearest the anal margin on the dorsal forewing base. Two well-defined subspecies occur in Alberta, pseudocarpenteri inhabiting the parkland and northern prairies, and leto of the southern foothills and prairies. Leto has brighter orange males with smaller upperside dark markings and striking, straw and charcoal females.

life history
Unrecorded in Alberta. The pale yellow eggs are laid near or on the host plant. First instar larvae hibernate without feeding. Mature larvae are velvety black with two pale-spotted subdorsal lines and covered with black branched spines, and feed only at night (Scott 1986).

conservation
Not of concern.

diet info
Larvae reportedly feed on a number of violet (Viola) species (Scott 1986). It is not known which species are used in western Canada.

range
Southern BC and central Alberta east across southern Canada and the central US to the Atlantic seaboard (Scott 1986). A disjunct population in the Peace River region of AB / BC is the northernmost in North America.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2835



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References (2)
Specimen Info
There are 38 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (38)

 

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