''Speyeria atlantis'', the Atlantis fritillary, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises ...

of the family

Nymphalidae The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a re ...

of North America. It is from the Avalon Peninsula of

Newfoundland and Labrador Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

to northern

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...

, across the northern United States south as far as

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

and

West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the ...

. It resides as far north as

James Bay James Bay (french: Baie James; cr, ᐐᓂᐯᒄ, Wînipekw, dirty water) is a large body of water located on the southern end of Hudson Bay in Canada. Both bodies of water extend from the Arctic Ocean, of which James Bay is the southernmost par ...

. The species is listed as endangered in

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

Its upperside is dark orange with many rows of black markings and black wing margins. Its underside is a light brown with many silvery-white spots. Wingspan ranges from .Atlantis Fritillary
Butterflies of Canada The larvae are hosted by violets. Adult foods include

common milkweed ''Asclepias syriaca'', commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. It is native to southern Canada and much of the United States east of the Rocky Moun ...

, mint, mountain laurel, crown vetch,

burdock ''Arctium'' is a genus of biennial plants commonly known as burdock, family Asteraceae. Native to Europe and Asia, several species have been widely introduced worldwide. Burdock's clinging properties, in addition to providing an excellent mecha ...

boneset Boneset may refer to: Plants *Various species of ''Ageratina'' *Various species of ''Eupatorium'' **Particularly ''Eupatorium perfoliatum'' *''Symphytum officinale'', a garden herb also called comfrey Album *''Boneset'', an album by Diane Cluck ...

, ox-eye daisy, spiraea, and virgin's bower. Atlantis fritillaries are sensitive to temperature with population trajectories showing declines in response to climate warming trends.

Subspecies

Listed alphabetically:"''Speyeria'' Scudder, 1872"
at Markku Savela's ''Lepidoptera and Some Other Life Forms'' *''S. a. atlantis'' *''S. a. canadensis'' (dos Passos, 1935) *''S. a. chitone'' (Edwards, 1879) *''S. a. dodgei'' (Gunder, 1931) *''S. a. beani'' (Barnes & Benjamin, 1926) *''S. a. dennisi'' dos Passos & Grey, 1947 *''S. a. dorothea'' Moeck, 1947 *''S. a. electa'' (Edwards, 1878) *''S. a. elko'' Austin, 1983 *''S. a. greyi'' (Moeck, 1950) *''S. a. hesperis'' (Edwards, 1864) *''S. a. hollandi'' (F. & R. Chermock, 1940) *''S. a. hutchinsi'' dos Passos & Grey, 1947 *''S. a. irene'' (Boisduval, 1869) *''S. a. lais'' (Edwards, 1883) *''S. a. lurana'' dos Passos & Grey, 1945 *''S. a. nausicaa'' (Edwards, 1874) *''S. a. nikias'' (Ehrmann, 1917) *''S. a. schellbachi'' Garth, 1949 *''S. a. tetonia'' dos Passos & Grey, 1945 *''S. a. viola'' dos Passos & Grey, 1945 *''S. a. wasatchia'' dos Passos & Grey, 1945

Similar species

Aphrodite fritillary The Aphrodite fritillary (''Speyeria aphrodite'') is a fritillary butterfly, from North America. This orange coloured fritillary has rows of dark dots or chevrons at the wing edges and black or brown lines more proximally. The ventral sides of ...

(''Speyeria aphrodite'') * Great spangled fritillary (''Speyeria cybele'') *

Northwestern fritillary ''Speyeria hesperis'', the northwestern fritillary, is a butterfly of the family Nymphalidae. It is found in the northwestern United States and western Canada, as far east as Manitoba and the Dakotas.Speyeria Butterflies of North America Fauna of the Northwestern United States Fauna of Western Canada Butterflies described in 1862 Taxa named by William Henry Edwards {{Heliconiinae-stub