PAPILIO XII., XIII. 
pletely edged by a fine black line, and separated by a narrow purple space; in 
the oval is a rounded purple spot in heavy black ring, and on the dorsal side of 
this is a black cross bar ; within the patch are three red-brown knobs, placed as 
in the previous stage, two of them inside the oval, the third just at the upper 
edge of the smaller section (Fig. g z ); in one example these knobs were observed 
to be suppressed inside the patch (as seen in the middle figure, g 3 ) ; in one, 
their position was indicated by a roughening of the surface with a brown dis¬ 
coloration ; there is some variation in the shape of the patches, as shown in the 
figures; in nearly all cases they are separated across dorsum by a space measur¬ 
ing .04 inch, in one example the space was .045, in one .05 inch, but no other 
was above .04 ; on 5 are four purple spots in cross line near the posterior edge ; 
when the larva bends, the front of 6 is seen to be black across dorsum, and the 
posterior edge of 5 is often more or less yellow; on 9, 10, 11 are two sub-dorsal 
spots to each ; 12 has two yellow sub-dorsal points, scarcely raised above the 
surface, and on 13 is a slight cross ridge with a yellow point at each end ; head 
shaped as before, pink, the lower face pale colored (Figs, g , g 2 ). Duration of 
this stage six to seven days. 
After fourth moult: length about one inch; in four to five days was fully 
grown. 
Mature Laeya. — Length about two inches ; cylindrical, thickest at 4 and 5, 
sloping on back and sides to 13 ; color of dorsum and upper part of side dark 
green, the lower part of side pale or bluish-green; the whole side specked with 
lighter color than the ground in oblique streaks; 2 has a yellow front ridge, 
arched, the corners rounded; on either side of 4 is an irregular club-shaped 
ochre-yellow patch, usually divided near its upper end, but sometimes not fully, 
there being then a yellow ligament binding the two parts on the anterior side; 
the upper spot, so cut off, is either triangular or sub-rectangular, the other is ob- 
ovate, sometimes double-convex; each spot edged by a fine black line; within 
the larger, and near its outer end, is a pale blue rounded spot in a heavy black 
ring, and above this is a black cross-bar; these patches are separated across 
dorsum by a space which very constantly measures .06 inch ; 5 is usually edged 
posteriorly with yellow, but slightly, and often there is no trace of this color; 
on front of 6 is a black band restricted to dorsum ; on 5 are four purple dots in 
cross-line, and on 9, 10, 11 each are four similar ones, the interior pair always a 
little the larger ; besides these is a row of purple dots below the spiracles from 
5 to 10, but obscure ; 12 has a pair of sub-dorsal yellow points, 13 a larger pair; 
under side and prolegs whitish blue-green ; legs yellow ; head rounded, a little 
broadest across lower face, depressed at top, the vertices rounded; color pink- 
brown (Figs, i to i 4 ). 
