Part 62 (1/2)

_Early Stages._--For a full knowledge of these the reader may consult the pages of ”The b.u.t.terflies of New England.” The caterpillar feeds on oaks and leguminous plants of various species.

This insect ranges from Quebec to Florida, and westward as far as Arizona, where it appears to be common.

(9) =Thanaos petronius=, Lintner, Plate XLVIII, Fig. 7, ? (Petronius'

Dusky-wing).

_b.u.t.terfly._--Allied in size to the preceding species, but the translucent spots of the transverse band are not, as in that species, continued toward the inner margin, but terminate at the first median nervule. The outer third of the primaries is pale, the inner two thirds very dark. The under side of the wings of the male is uniformly dusky, slightly, if at all, marked with lighter spots. The under side of the wings of the female is less distinctly marked with light spots than is the case in allied species. Expanse, 1.50-1.75 inch.

_Early Stages._--Unknown.

The species has thus far been found only in Florida.

(10) =Thanaos horatius=, Scudder, Plate XLVIII, Fig. 15, ? (Horace's Dusky-wing).

_b.u.t.terfly._--Smaller than _T. juvenalis_, which it resembles in the long transverse series of translucent spots. It is, however, paler on the upper side of the wings, and more profusely mottled on the hind wing both above and below, though there is considerable variation in this regard. Expanse, 1.65 inch.

_Early Stages._--The caterpillar probably feeds on the _Leguminosae._ We know very little about the life-history of the species.

The b.u.t.terfly ranges from Ma.s.sachusetts to Texas.

(11) =Thanaos naevius=, Lintner, Plate XLVIII, Fig. 3, ? (Naevius'

Dusky-wing).

_b.u.t.terfly._--This insect is closely allied to _T. petronius_, but the translucent spots on the fore wing are smaller, and there is generally a light spot near the costa before the three subapical translucent spots.

_Early Stages._--Unknown.

The habitat of this species is the region of the Indian River, in Florida.

(12) =Thanaos pacuvius=, Lintner, Plate XLVIII, Fig. 9, ? (Pacuvius'

Dusky-wing).

_b.u.t.terfly._--Small, with the fore wings on the upper side rather regularly banded with dark brown upon a lighter ground. The hind wings are almost solid black above, with the fringes toward the a.n.a.l angle pure white. Expanse, 1.15-1.30 inch.

_Early Stages._--Unknown.

This species occurs in Colorado, Mexico, and Arizona.

(13) =Thanaos c.l.i.tus=, Edwards, Plate XLV, Fig. 8, ? (c.l.i.tus).

_b.u.t.terfly._--Larger than the preceding species. The hind wings are solidly deep black, fringed broadly with pure white. The fore wings of the male are dark, of the female lighter. Expanse, 1.60-1.75 inch.

_Early Stages._--Unknown.

The habitat of this species is Arizona and New Mexico.

(14) =Thanaos funeralis=, Lintner, Plate XLVIII, Fig. 12, ? (The Funereal Dusky-wing).

_b.u.t.terfly._--Closely allied to the preceding species, of which it may be only a smaller varietal form. Expanse, 1.35 inch.