(11) Papilio nitra, Edwards, Plate XLI, Fig. 2, ♂ (Nitra).
Butterfly.—This insect, which is still very rare in collections, is very nearly related to the preceding species, it having, no doubt, with the succeeding species, sprung from the same original stock as zolicaon and aliaska.
Early Stages.—Unknown.
The insect occurs in Montana and the portions of British America adjacent on the north.
(12) Papilio indra, Reakirt, Plate XLI, Fig. 3, ♁ (Indra).
Butterfly.—Easily distinguished by the short tails of the secondaries, and the narrow bands of yellow spots on the wings closely resembling those found in the same location on the wings of P. asterias, ♂. Expanse, 2.50-2.75 inches.
Early Stages.—These still await description.
Indra occurs on the mountains of Colorado, Nevada, and California.
(13) Papilio brevicauda, Saunders, Plate XL, Fig. 5, ♁ (The Newfoundland Swallowtail).
Butterfly.—There are two varieties of this species—one with bright-yellow spots, one with the spots more or less deeply marked with orange-yellow on the upper sides of the wing. The latter variety is represented in the plate. The form with the yellow spots is common on the island of Anticosti; the other occurs quite abundantly in Newfoundland. Expanse, 2.75-3.00 inches.