After a journey of ten miles over snow and snowbanks from four to eight feet deep, I arrived in the latter part of June, on my summer and fall collecting ground on the Fuloumne Meadows, which lie on the edge of the area wherein the high Sierra species of Lepidoptera are most numerous. The Paranassius was one of the first I began to collect, as the butterflies had just commenced to issue, and were flying in the grassy and shaded timber-covered portions of a rocky side hill slope.