(14) Melitæa whitneyi, Behr, Plate XVII, Fig. 7, ♂; Fig. 8, ♂, under side (Whitney's Checker-spot).

Butterfly.—The markings are much as in M. palla, the spots are lighter fulvous and larger than in that species, the yellow bands on the under side are more prominent, and the marginal spots have a silvery luster which is lacking in M. palla. The female has the yellow of the under side more prominent than is the case in the male sex. Expanse, ♂, 1.50 inch; ♁, 1.70 inch.

Early Stages.—Altogether unknown.

Whitney's Checker-spot ranges from California into Nevada.

(15) Melitæa hoffmanni, Behr, Plate XVII, Fig. 13, ♂; Fig. 14, ♁, aberration (Hoffmann's Checker-spot).

Butterfly, ♂.—General style of marking much as in the two preceding species, but with the basal area black, and the black markings toward the outer margin not so heavy, giving it here a more fulvous appearance. The median bands on both wings are broader and paler than in M. palla. The under side is much as in the last-mentioned species, but the yellow markings are more prominent.

♁.—Much like the male. Expanse, ♂, 1.35 inch; ♁, 1.45 inch.

Early Stages.—Unknown.

This species, which is found in California and Nevada, is subject to extreme variation, and I have placed upon the plate one out of many beautiful and singular aberrations which I possess.

(16) Melitæa gabbi, Behr, Plate XVI, Fig. 15, ♂ (Gabb's Checker-spot).