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84
Journal of the Lepidopterists' Society
Ayala, F. J. 1973. Two new subspecies of the Drosophila willistoni group. Pan-Pacific Entomol. 49: 274-279.
Burns, J. M. 1964. Evolution in skipper butterflies of the genus Erynnis. Univ. Calif. Publ. in Entomol. 37: 1-214.
Clarke, C. A. & P. M. Shepparjd. 1970. Is Papilio gothica (Papilionidae) a good species? J. Lepid. Soc. 24: 229-233.
Klots, A. B. 1951. A Field Guide to the Butterflies. Houghton Mifflin, Boston. 349 p.
Poole, R. W. 1974. An Introduction to Quantitative Ecology. McGraw-Hill, New York. 532 p.
Remington, C. L. 1968. A new sibling Papilio from the Rocky Mountains, with genetic and biological notes. Postilla 119: 1-40.
CORRECTIONS TO TWO ARTICLES ON ABERRANT CYNTHIA (NYMPHALIDAE)
Two recent articles on aberrant Cynthia have contained errors of identification which should be corrected to prevent perpetuation of inaccurate records. Phillips (1971, Great Basin Natural. 31: 256-260) reported the capture of Cynthia cardui ab. elymi Rambur from Salt Lake City, Utah. This aberration, illustrated in color, is clearly C. annahella ab. letcheri Grinnell, which is easily distinguished from C. cardui ab. elymi by the forewing discal cell marking which completely crosses the cell in C. annahella but remains a spot against the anterior cell margin in C. cardui, and by the forewing apex which is pointed at Mi in C. annahella and more rounded in C. cardui. C. cardui ab. elymi, then, remains unrecorded for Utah.
Shapiro (1973, Pan-Pac. Entomol. 49: 289-293) described and illustrated aberrations of C. annahella. His Figs. 1 and 2 are indeed C. annahella, but Fig. 3 is C. cardui showing tendencies toward ab. elymi. The same characteristics used to separate C. annahella ab. letcheri and C. cardui ab. elymi in the previous article can be used to correctly determine this specimen.
When used with care the excellent color illustrations of aberrant Cynthia (= Vanessa) in Comstock's Butterflies of California (1927) should leave no doubt as to the correct species identifications of some aberrations. However, the above mistaken identifications show the difficulty of applying names to aberrations, which by their very nature can be quite variable.
Thomas E. Dimock, 111 Stevens Circle, Ventura, California 93003.