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	158	Masters: Aberrant Colias	Vol. 22, no. 3
	mid June and late July-mid August, indicating two generations outdoors. The reared individual noted above would presumably have overwintered as the pupa. Literature Cited Hering, P. E. 1932. The insect fauna of the mustard family, Cruciferae. Un­published Ph.D. Thesis, Dept. of Entomology, Cornell University, Ithaca, N.Y. Pimentel, D. 1961. Competition and the species-per-genus structure of com­munities. Ann. Ent. Soc. Amer., 54: 323-333. Arthur M. Shapiro, Dept. Entomology and Limnology, Cornell University, Ithaca, New York
	AN ABERRANT COLIAS FROM MINNESOTA (PIERIDAE) An unusual male Colias eurytheme Boisduval was captured at Fort Snelling, Hennepin County, Minnesota, on August 6, 1966, by Dr. Mance Brackney of Minneapolis. The specimen is completely devoid of melanin (black pigmentation) on the wings, but it is not albinic, as yellow, orange and pink pterin pigmentation is well developed. Dorsally the wing margins (usually black) are a pale yellow in contrast to orange basal and discal areas that lack black clouding. Ventrally the butterfly is pale yellow and has neither the typical greenish cast nor the black
	Aberrant male Colias eurytheme Boisduval, Hennepin County, Minnesota Left: dorsal view; right: ventral (actual size).
	spots in the limbal area. The cell spot on the primaries is colorless (almost transparent) while the cell spot on the secondaries only lacks black rings on the ventral side to be normal. The pink wing fringes are present. The body and antennae of the butterfly are typical. The specimen is retained in Dr. Brackney's private collection.—John H. Masters, Box 7511, Saint Paul, Minnesota