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Euphydryas phaeton ozarkae Masters, 1968
(Baltimore Checkerspot)

Pinned Specimens photo collection Page 1:

Pinned Specimens photo collection Page 2:

Aberrations photo collection:

Live Adults photo collection:

Distribution and Larval Foodplants:

Caprifoliaceae: Lonicera canadensis Bartr. ex Marsh.


(From: A Catalogue of the Butterflies of the United States and Canada, Jonathan P. Pelham)

Genus Euphydryas Scudder, 1872

4th Ann. Rept. Peabody Acad. Sci. (1871): 48. Type-species: Papilio phaeton Drury, 1773, Ill. Nat. Hist. 1: 42-43, pl. 21, figs. 3, 4; 2: index, by original designation. I.C.Z.N. Opinion 278 placed this name on the Official List of Generic Names in Zoology as name no. 700.


Euphydryas phaeton (Drury, 1773)

Ill. Nat. Hist. 1: 42-43, pl. 21, figs. 3 ♀ D, 4 ♀ V (1770); 2: index (1773, name given).

Original Combination: Papilio Phaeton

Type Locality: “New York”

Types: Type(s) lost.

I.C.Z.N. Opinion 278 placed this name on the Official List of Specific Names in Zoology as name no. 104.

=    phaetaena (Hübner, [1819])

Verz. bekannt. Schmett. (2): 228, no. 221; cited “Fabr. Syst. Pap. 167, Cram. 193. C. D.”

Original Combination: Melitaea Phaëtaena

Type Locality: Not stated.

Types: Type(s) probably lost.

This name is probably a misspelling, but the references by Hübner make this unclear.

=    schausi (A. Clark, 1927)

Proc. U. S. Nat. Mus. 71(2683): 1-2, pl. 1, figs. 5 ♂ D, 6 ♂ V, 7 ♀ D, 8 ♀ V; pl. 3, figs. 17-24; pl. 4, figs. 25-32; pl. 5, figs. 33-40.

Original Combination: Melitaea phaëton schausi

Type Locality: Not stated; syntypes from “Cabin John, Maryland.” [Montgomery County]

Types: Syntypes in USNM.

=    borealis F. Chermock & R. Chermock, 1940

Bull. Penn. Acad. Sci. 14: 140.

Original Combination: Euphydryas phaëton borealis

Type Locality: “Lincoln, Maine” [Penobscot County]

Types: Holotype in CNC.

=    ‡”superba” (Strecker, 1878)

Butts. & Moths N. Am., Comp. Syn. Cat.: 125, no. 249.

Original Combination: [Melitaea Phaeton] ab. a. ♂ Superba

Type Locality: “Long Island, New York”

Types: “Holotype” in FMNH; figured by Gunder (1927), Entomol. News 38(9): pl. 6, upper half, fig. 5 ♂ D&V.

=    ‡”phaethusa” (Hulst, 1881)

Bull. Brooklyn Entomol. Soc. 3(9): 77, no. 6, pl., fig. no. 6 ♂ (“holotype”).

Original Combination: Melitaea Phaethusa aber. nov.

Type Locality: “just outside the city line of Brooklyn, at east Williamsburgh” [Long Island, New York]

Types: “Holotype” in USNM; figured by Gunder (1929), Pan-Pac. Entomol. 6(1): pl. 1 ♂ D&V.

=    ‡”streckeri” (Ellsworth, 1902)

Entomol. News 13(4): 104.

Original Combination: [Melitaea phaeton aberration or variety] Melitaea streckeri

Type Locality: “Vestal, N. Y.” [Broome County, New York]

Types: Location of “holotype” not known.

Although this name was proposed as a binomen, this taxon was clearly defined as an individual variant in the text. It is considered unavailable.

=    ‡”magnifica” (A. Clark, 1927)

Proc. U. S. Nat. Mus. 71(2683): 7, pl. 2, figs. 9 ♀ D, 10 ♀ V, 11 ♀ D (“type”), 12 ♀ V (“type”).

Original Combination: Melitaea phaëton ab. magnifica

Types: “Cabin John, Maryland” [Montgomery County]

Types: “Holotype” in USNM.


Euphydryas phaeton ozarkae Masters, 1968

Entomol. News 79(4): 87-89, figs. 1 ♂ D, 2 ♂ V (holotype); 5 ♀ D, 6 ♀ V, 9 ♂ genitalia.

Original Combination: Euphydryas phaeton ozarkae

Type Locality: “Ridge north of Lynch Hollow, near county road F, Camden county, Missouri”

Types: Holotype in CMNH.

The status of this taxon relative to E. p. phaeton was examined by Vawter & Wright, 1986, J. Res. Lepid. 25(1): 25-29.


Bauer, David L. 1975. Tribe Melitaeini. Pp. 139-195, in: W. H. Howe (ed.) The butterflies of North America. Garden City, New York, Doubleday & Co.: xiii + 633 pp.; 97 pls., 32 tf. {[7 Nov] 1975} [definition of the lacinia group] 

dos Passos, Cyril Franklin. 1969. A revised synonymic list of the nearctic Melitaeinae with taxonomic notes (Nymphalidae). Journal of the Lepidopterists= Society 23(2): 115-125 {29 May 1969} 

Masters, John H. 1968. Euphydryas phaeton in the Ozarks (Lepidoptera: Nymphalidae). Entomological News 79(4): 85-91, 10 figs. {[11] Apr 1968} [description of Euphydryas phaeton ozarkae

Shull, Ernest M. and F. Sidney Badger. 1972. Annotated list of the butterflies of Indiana, 1971. Journal of the Lepidopterists= Society 26(1): 13-24 {} 

Vawter, A. Thomas and Janet Wright. 1986. Genetic differentiation between subspecies of Euphydryas phaeton (Nymphalidae: Nymphalinae). Journal of Research on the Lepidoptera 25(1): 25-29, 2 tbls. {Spring 1986, 1 Oct 1986} 

Wahlberg, Niklas & Marie Zimmerman. 2000. Pattern of phylogenetic relationships among members of the tribe Melitaeini (Lepidoptera: Nymphalidae) inferred from mitochondrial DNA Sequences. Cladistics 16(4): 347-363, 4 figs., 3 tbls. {Dec 2000} 

Zimmerman, Marie, Niklas Wahlberg and Henri Descimon. 2000. Phylogeny of Euphydryas checkerspot butterflies (Lepidoptera: Nymphalidae) based on mitochondrial DNA sequence data. Annals of the Entomological Society of America 93(3): 347-355, 4 figs., 5 tbls. {May 2000}

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