PAPILIO III., IV., V. 
yellowish; 2 has a narrow arched chitinous frontal ridge, the corners rounded; 
close to the back of this ridge is the orifice through which the scent organs are 
protruded at will, long, slender, tapering to a blunt point, when fully extended, 
and bifurcated at base, the color orange-red ; (the larva at every stage from the 
egg has the use of these organs); on either side of 4 a sub-oval or pyriform 
greenish-yellow, or partly ochraceous patch, edged by a fine black line ; on the 
outer part of this a heavy black ring, rounded or oval, enclosing a purple spot, 
and toward dorsum a black bar; the inner extremities of these patches are sep¬ 
arated across dorsum by a space measuring .16 to .18 inch; 5 is edged on the 
posterior side by yellow, and the front of 6 has a black band restricted to dor¬ 
sum ; on 4 are two purple spots or dots, one on either side dorsum near the 
patch ; on 5 four spots in line near the posterior edge ; on 8, 9, 10, 11, four to 
each, those on 8 small, sometimes partly or wholly obsolete; on 12 two sub¬ 
dorsal, small; on 6 to 12 one to each segment below the spiracles, small; head 
rather square, flattened in front, the top a little depressed, the vertices rounded; 
color brownish-pink. (Figs./, III., j, j 2 , XIII.) At about seven days before 
pupation the green becomes more yellow and a dull shade of it covers dorsum ; 
and within twenty-four hours the whole body changes to chocolate-brown, 
specked and mottled with grayish on segments after 5 and along base before 5; 
the purple spots retain their hue. (Fig. f 2 , III.) Suspension takes place at one 
to two days from this change of color and pupation from one to two days later. 
From fourth moult to pupation about ten days. From laying of egg to pupa¬ 
tion, in August and September, 32 to 38 days. 
Chrysalis. — Length of several 1.3, 1.4, 1.45, 1.48 inch, the larger'being fe¬ 
male ; greatest breadth 1.3, 1.4, 1.44 inch ; cylindrical, thickest at 5 and 6, the 
abdomen tapering rapidly ; head-case long, compressed at top transversely to an 
edge; the projections prominent, divergent, pj^ramidal, the edges raised into 
corrugated and thickened ridges, the tops rounded, the incision between them a 
right angle, with a small tooth on either side near the angle ; the small projec¬ 
tions at side of head pyramidal, with thick, rough edges; the mesonotum prom¬ 
inent, but variable in length and thickness, directed forward, blunt and corru¬ 
gated at end and on anterior side ; two sub-dorsal rows of tubercles from 4 to 
13, largest on 8, 9, 10, the rest small, on 6 and 7 nearly or quite wanting ; below 
these another row on either side, small, from 4 to 13 ; whole surface corrugated; 
color variable, some examples being light or wood-brown, striped longitudinally 
on sides and dorsum with dark brown; others are very dark throughout, and 
some are gre^en over wing-cases, sides and entire dorsal area, the abdomen light 
brown, or green only about the head and sides. (Fig. y, III.) 
