PAPILIO XII., XIII. 
PAPILIO EUTULUS. 1-4. 
Papilio Rutulus, Boisduval, Ann. Soc. Ent. de France, 2 rae ser., v. X., p. 279, 1852. 
Var. Arizonensis, Edwards, Papilio, v. III., p. 4, 1883. 
Male. — Expands from 3.5 to 4.25 inches. 
Upper side yellow, banded with black; costa of primaries black, more or less 
dusted throughout, and next base densely, with yellow; a narrow band crosses 
the bases of wings and follows the abdominal margin, bends inward at an obtuse 
angle and joins the extremity of the second band ; this last crosses both wings, is 
broad on primaries, but narrows gradually as it approaches the inner margin, 
and on secondaries is reduced to a slender, tapering stripe; the third band 
crosses outer part of cell of primaries, is broad, usually curved, and is continued 
by an irregular patch to lower branch of median nervure, with spurs along the 
upper branches; the fourth band lies on the arc of cell; the fifth is made up of 
a rounded spot in sub-costal interspace, and a patch which reaches the discoidal 
nervule ; the marginal border is broad, even-edged within, and through it, on 
primaries, runs a series of small yellow spots, which form a tapering band, the 
anterior spots oval or lunate, the others straight, and often mere streaks; on the 
basal side of these, on the black ground, is a stripe of yellow scales; on seconda¬ 
ries, the border widens posteriorly, and in the median interspaces is densely 
dusted with yellow on the inner side ; along the margin are four yellow spots, the 
posterior one lunular, the remainder narrow bars, curved or straight; sometimes 
a fifth spot appears at outer angle, but is always small, a streak, or cluster of 
scales; next inner angle a small deep fulvous lunule, or a streak, often wanting; 
the incision at this angle edged fulvous; through the border runs a series of 
loose clusters of blue scales, often wanting on anterior half of wing, but more 
compact on low 7 er median interspace, there forming a large rounded patch; next 
inner margin a blue crescent; primaries usually have the sub-costal and discoidal 
nervules edged black ; the arc of cell on secondaries often covered by a black 
bar; tail long, narrow, bent, convex outwardly, somewdiat spatulate on inner 
side, but often so little as to be scarcely perceptible; fringes of primaries black, 
