Aaron, Charles E. 1884. On the caterpillars of North American Papilionidae and Nymphalidae. Papilio 4(5/[6]): 83-91. {May-Jun [22 Jul] 1884} cited in Papilio 4(9/10): 189} [Translated from Gruber, August, 1884, Jena Zeitschrift für naturwissenschaft 17 (N.F. 10)] 

Bauer, David L. 1961. Tribe Melitaeini. Pp. 127-146, in: P. R. Ehrlich & A. H. Ehrlich, How to know the butterflies. Dubuque, Iowa; W. C. Brown Co.: [8] + 262 pp., 525 figs. {1961} 

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} 

Berenbaum, May R. 1995. Aposematism and mimicry in caterpillars. Journal of the Lepidopterists= Society 49(4): 386-396, 4 figs., 1 tbl. {1995} 

Beutenmüller, William. 1893. Article XVI.-Descriptive catalogue of the butterflies found within fifty miles of New York City, together with a brief account of their life histories and habits. Bulletin of the American Museum of Natural History 4(16): 241-310, 5 pls. {Oct 1893} 

Bowe, John J. 1972. Another larval foodplant for Euphydryas phaeton (Drury) (Nymphalidae). Journal of the Lepidopterists= Society 26(2): 122. {17 May 1972} 

Bowers. M. Deane 1978. Over-wintering behavior in Euphydryas phaeton (Nymphalidae). Journal of the Lepidopterists= Society 32(4): 282-288 {28 Feb 1979} 

Bowers. M. Deane 1980. Unpalatability as a defense strategy of Euphydryas phaeton (Lepidoptera: Nymphalidae). Evolution 34(3): 586-600 {May 1980} 

Bowers. M. Deane 1982. Aggregation behavior in Baltimore checkerspot caterpillars, Euphydryas phaeton (Nymphalidae). Journal of the Lepidopterists= Society 36(1): 31-41, 4 figs., 1 tbl. {16 Jun 1982} 

Bowers. M. Deane 1983. Selection of oviposition sites by the Baltimore checkerspot, Euphydryas phaeton (Nymphalidae). Journal of the Lepidopterists= Society 36(4): 290-302, 3 figs., 5 tbls. {1983, 18 Mar 1983} 

Britten, Hugh B., Peter F. Brussard and Dennis D. Murphy. 1996. Isozyme data and the taxonomy of checkerspot butterflies (Euphydryas ). Journal of Research on the Lepidoptera 32: 124-134, 1 fig., 4 tbls. {1993, 1 May 1995} 

Chermock, Franklin Hugo and Ralph Lucien Chermock. 1940. A new race of Euphydryas phaeton Dru. Bulletin of the Pennsylvania Academy of Science 14: 140. {1940} [description of Euphydryas phaeton borealis]

Brussard, Peter F., John F. Baughman, Dennis D. Murphy, Paul R. Ehrlich and Janet Wright. 1989. Complex differentiation in checkerspot butterflies (Euphydryas spp.). Canadian Journal of Zoology 67(2): 330-335, 4 figs., 1 tbl. {Feb 1989} 

Clark, Austin Hobart. 1927. Notes on the melitaeid butterfly Euphydryas phaëton (Drury), with descriptions of a new subspecies and a new variety. Proceedings of the United States national Museum 71(2683): 1-22, 5 pls. {22 Apr 1927} [description of Melitaea phaëton schausi; Melitaea phaëton schausi ab. magnifica] 

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} 

Drury, Dru. 1770-1782. Illustrations of Natural History.  Wherein are exhibited upwards of two hundred and forty figures of Exotic Insects, according to their different genera; very few of which have hitherto been figured by any author, being engraved and coloured from nature, with the greatest accuracy, and under the author=s own inspection on fifty copper-plates; with a particular description of each insect: interpersed with remarks and reflections on the nature and properties of many of them.  To which is added a translation into French. London; White 1: xxvii + 130 + [2] pp.; 50 + 1 pls., 4 figs. ([23 Apr] 1770}; 1(index): xiii pp.; 2: vii + 90 + [4] pp.; 50 pls. {[14 May] 1773}; 3: xxviii + 76 + [2] pp.; 50 pls {[23 Jul] 1782} [description of Papilio Phaeton] 

Edwards, William Henry. 1868-1897. The butterflies of North America. Boston; Houghton, Mifflin & Co. 1: [i], ii, [163], v, 52 pp., 50 pls. (1868-1872); 2: [i], [358] pp., 51 pls. (1874-1884); 3: [viii], [432] pp., 51 pls. (1887-1897). 

Edwards, William Henry. 1875. Notes on butterflies. Canadian Entomologist, 7(8): 150-151. {Aug 1875} 

Edwards, William Henry. 1884. Description of the preparatory stages of Melitaea Chalcedon, Boisd., with some notes on larvae of M. Phaeton. Papilio 4(4): 63-70 {[23] Apr 1884} cited in Papilio 4(5/[6]): 114 

Ehrlich, Paul Ralph, Raymond R. White, Michael C. Singer, Stephen W. McKechnie and Lawrence Edmund Gilbert. 1975. Checkerspot butterflies: a historical perspective. Science 188: 221-228, 2 figs., 1 tbl. {18 Apr 1975} 

Ellsworth, Addison. 1902. Notes on butterflies and description of an aberration. Entomological News 13(4): 103-104. {Apr 1902}[description of Melitaea phaeton aberration or variety Melitaea streckeri] 

Fernald, Charles Henry. 1884. The butterflies of Maine. Augusta; Sprague & Son, 8vo: 104 pp.; 35 figs. {Feb 1884}

French, George Hazen. 1890. The butterflies of the eastern United States. Philadelphia, J. B. Lippencott Co.: 408 pp., 93 figs. {1890} 

Gunder, Jean Daniel. 1927. Transition forms (Lepidoptera, Rhopalocera). Entomological News 38(9): 263-271, 6 pls. {Nov, [31 Oct] 1927} 

Gunder, Jean Daniel. 1929. The genus Euphydryas Scud. of boreal America (Lepidoptera, Nymphalidae). Pan-Pacific Entomologist 6(1): 1-8, 16 pls. {Jul 1929} 

Higgins, Lionel George. 1978. A revision of the genus Euphydryas Scudder (Lepidoptera: Nymphalidae). Entomologist=s Gazette 29(3): 109-115. {21 Jul 1978} 

Hübner, Jacob 1816-[1826]. Verzeichniss bekannter Schmettlinge [sic!]. Anzeiger derim Verzeichnisse bekannter Schmettlinge aufnommenen benennungen, ihrer horden, rotten, stämme, familien, vereine und gattungen. Augsburg, Augustae Vindelicorum: 432 pp.; (Anzeiger) 72 pp. [dates determined from I.C.Z.N. Opinion 150] [description of Melitaea Phaetaena] 

Hulst, George Duryea. 1881. Description of some new species of North American Lepidoptera. Bulletin of the Brooklyn entomological Society 3(9): 75-77. {Jan 1881}; 4(1): pl. {May 1881} [description of Melitaea Phaetusa aber. nov.] 

Lintner, Joseph Albert. 1872. Entomological contributions- No. 2.  II. Observations on Melitaea Phaeton (Fabr). Pp. 154-157, in: From the twenty-third annual report of the New York State Cabinet of Natural History for the year 1869.  Appendix D. Entomological contributions.  By J. A. Lintner.  Printed in Advance of the Report. Albany; Weed, Parsons and Company, Printers: [4] + 5-90 pp., 8 pls.; pages of Annual Report (published later) and Contributions on each page {1872} 

Maynard, Charles Johnson. 1891. The butterflies of New England; with original descriptions of one hundred and six species, accompanied by an appendix containing descriptions of one hundred additional species.  Illustrated with ten hand-colored plates, in which are given at least two hand-colored figures of each species. second edition. Newtonville, Mass., C. J. Maynard: [4] + iv + 78 + [4] pp.; 10 pls. 

Ottolengui, Rodrigues. 1895. Types in the Neumoegen Collection.--1 Entomological News 6(7): 216-219. {Sep 1895} 

Scudder, Samuel Hubbard. 1888-1889. The butterflies of the eastern United States and Canada with special reference to New England. Cambridge; Samuel Hubbard Scudder, 1(introduction, Nymphalidae): xxiv +  766 pp., frtspc. (colored); 2(Lycaenidae, Papilionidae, Hesperiidae): xii + 767-1774, frtspc. (colored), 1 map; 3(appendix, plates): i-viii, 1775-1958, frtspc., pls. 1-89 (14 colored), 3 maps {[Nov 1888], [1Apr] 1889} 

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 {}