August 4. 'The first known butterfly from Pt. Barns was captured today approximately a half mile south of the laboratory. The specimen, a male, is a representative of the sulfur butterfly genus Colias, which is widely distributed over the circumpolar regions extending southward into mid latitudes where at least one species of the genus, the alfalfa butterfly has become a serious pest. The only published records for the Alaskan Arctic Slope include the foothills of the Brooks Range, Umiat, Barter Island, and Collinson Point. Thus the Pt. Barns specimen, which doubtless wandered northward from the environs of the Brooks Range, marks the northernmost occurrence of butterflies on the North American continent.'