Aphrodite Fritillary - Speyeria aphrodite
[From Ferris and Brown 1981, Scott 1986, Glassberg 2001, Guppy and Shepard 2001] Forewing 2.6-3.7 cm. A large to mid-sized fritillary with variable markings; upper wing surfaces bright reddish brown with many black markings; ventral hindwing brown to reddish brown extending beyond the postmedian silver-white spots (spots lacking in some from Bears Paw Mountains); eyes dull yellow-green; presence of a dark spot along the inner trailing margin of dorsal forewing; males lack black swollen areas along dorsal forewing veins; ventral hindwing of both sexes between veins M3 and CuA1 with postmedian black spot always surrounded by a faint black circle or halo.
One flight: adults fly from late June to mid-September (Scott 1986, Guppy and Shepard 2001).
Combination of dull yellow-green eyes; presence of a dark spot along the inner trailing margin of dorsal forewing; males lack of black swollen areas along dorsal forewing veins; ventral hindwing of both sexes between veins M3 and CuA1 with postmedian black spot always surrounded by a faint black circle or halo should help differentiate this species.
From British Columbia east to Nova Scotia, south in the west to Arizona and New Mexico, south in the east along Appalachian Mountains to Georgia (Scott 1986, Guppy and Shepard 2001). Considered common (Glassberg 2001). Uncommon in Greater Yellowstone Ecosystem (Debinski and Pritchard 2002).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Mostly non-migratory, but rare migrants occur in central Great Plains (Scott 1986).
Lower elevation native prairie grassland, shrub-steppe, open woods, mesic montane and aspen parkland meadows (Scott 1986, Guppy and Shepard 2001). Mesic meadows in Glacier National Park (Debinski 1993).
Larval foodplants include several species of Viola. Adults feed on flower nectar (Scott 1986, Guppy and Shepard 2001).
Females may lay eggs in late June through July, but usually in mid-August. Larvae hatch from eggs laid singly at base of the food plant or nearby (often under shrubs); first instar larvae (L1) overwinter; larvae do not produce nests, instead begin feeding the following spring once food plant has leafed out. Adult males patrol all day mostly in open areas in search of females (Scott 1986, Guppy and Shepard 2001).
- Literature Cited AboveLegend: View Online Publication
- Debinski, D. 1993. Butterflies of Glacier National Park, Montana. Occasional Papers of the Museum of Natural History, the University of Kansas, Lawrence, Kansas. No. 159: 1-13.
- Debinski, D.M. and J.A. Pritchard. 2002. A field guide to the butterflies of the Greater Yellowstone Ecosystem. Lanham, MD: Roberts Rinehart Publishers. 107 p.
- Ferris, C.D. and F.M. Brown (eds). 1981. Butterflies of the Rocky Mountains. Univ. of Oklahoma Press. Norman. 442 pp.
- Glassberg, J. 2001. Butterflies through Binoculars: A Field Guide to the Butterflies of Western North America. Oxford University Press.
- Guppy, C.S. and J.H. Shepard. 2001. Butterflies of British Columbia: including western Alberta, southern Yukon, the Alaska Panhandle, Washington, northern Oregon, northern Idaho, northwestern Montana. UBC Press (Vancouver, BC) and Royal British Columbia Museum (Victoria, BC). 414 pp.
- Scott, J.A. 1986. The butterflies of North America: a natural history and field guide. Stanford University Press, Stanford, California.
- Additional ReferencesLegend: View Online Publication
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- Allen, T.J., J.P. Brock, and J. Glassberg. 2005. Caterpillars in the field and garden: a field guide to the butterfly caterpillars of North America. Oxford University Press.
- Brock, J.P. and K. Kaufman. 2003. Kaufman Field Guide to Butterflies of North America. Houghton Mifflin Company, New York, NY 284 pp.
- Debinski, D. M. 1991. Inventory and monitoring of biodiversity: an assessment of methods and a case study of Glacier National Park, MT. Ph.D. Dissertation. Montana State University, Bozeman. 205 p.
- Layberry, R.A., P.W. Hall, and J.D. LaFontaine. 1998. The Butterflies of Canada. University of Toronto Press. 280 pp. + color plates.
- Stanford, R.E. and P.A. Opler. 1993. Atlas of western USA butterflies: including adjacent parts of Canada and Mexico. Unpubl. Report. Denver and Fort Collins, Colorado 275 pp.
- Additional Sources of Information Related to "Insects"