PAPILIO I. 
within the marginal band of secondaries, edging posteriorly a line of blue luna¬ 
tions ; the yellow ground beyond cell tinted with orange ; the sub-marginal spots 
enlarged, and all more or less orange. 
Body above black ; a yellow line passes' along the thorax from head to 
insertion of secondaries; beneath, thorax yellow in front, alternately yellow and 
black at sides in oblique bands; abdomen yellow with one lateral and two ventral 
black lines; legs black ; palpi yellow; frontal hairs short, black; antennas and 
club black. 
Female. — Expands about 4 inches. 
Color ochraceous-yellow, in markings similar to the male. 
Mature Larva. — Length 1.7 inch. Cylindrical, thickest at fifth segment, 
tapering rapidly to the last; head small, ob-ovate, pinkish-brown; body apple- 
gieen abo\e, greenish-white beneath, as are the legs and pro-legs ; on the fourth 
segment are six small, yellow spots, two dorsal in advance of the others, which 
last are near together, one pair on either side, and ringed with black ; the fifth 
segment edged posteriorly by a broad yellow band, which joins a black band in 
front °f sixth, the two terminating evenly half way down the sides; fronting 
them is a dorsal row of four small, angular, black spots; on the eighth to elev¬ 
enth segments inclusive, is a lateral row of black dots parallel to the spiracles, 
which also are black ; retractile horns bright orange. 
The figures of larvae from which the drawings on the Plate were taken, I owe 
to the kindness of Mr. R. H. Stretch, of San Francisco. 
Chrysalis. — Length 1.3 inch. Cylindrical, greatest diameter at seventh 
segment, tapering slightly towards head, and rapidly towards last segment; 
surface rough, the abdominal segments tuberculated dorsally; head case long! 
corrugated, the palpi cases prominent, pyramidal; mesonotal process similar to 
Palpi cases ? but little smaller, and the ocellar projections of same general form; 
coloi pale fawn, streaked irregularly with black and brown over entire surface ; 
on either side a dark brown band along the wing cases and down the abdomen 
to last segment; tubercles and spiracles black. Mr. Henry Edwards, of San Fran¬ 
cisco, states (Proc. Cal. Acad. Sci., 1873) that in some individuals the ground 
color of the chrysalis is pale green. In this respect this chrysalis resembles that 
of Papiho Turnus, which is occasionally green, though the usual shade is 
brown. Mr. Edwards gives Frangula Californica as the food-plant of the 
caterpillar. Dr. Behr informs me that the chrysalis is often found by gardeners 
among their plants: and it is probable that the species feeds upon many plants, 
as does Turnus , which is to be found upon apple, thorn, cherry, ash, tulip, birch! 
and others. 
Individuals of this species vary much in the breadth of the black bands and in 
