22 
Psyche 
[March 
Second Instar 
Head height .58 mm. ; head width .6 mm. Head same color. 
Smooth. Numerous short fuscous hairs over entire surface. 
Length of body 4 to 5 mm. Same color as before. Mid-dorsal 
line dark green. Stigmatal line light green. Numerous 
short black hairs arising from whitish tubercles. Those on 
anal segment longest. 
Third Instar 
Head height .9 mm. ; head width 1.0 mm. Length of body 
5 to 8 mm. Mid-dorsal line Danube green. Para-dorsal line 
shamrock green. Narrow stigmatal line light turtle green. 
Remainder of body clear fluorite green. Other characters 
same as above. 
Fourth Instar 
Head height 1.4 mm. ; head width 1.5 mm. Head smooth. 
Fuscous hairs shorter and more numerous. Length of body 
10 to 13 mm. Same as above. 
Eggs laid May 31 hatched June 3 three days later. They 
were laid on the leaves of Mimosa pudica. The female de- 
posited the eggs most often on the top side of the vein of the 
leaf. She was not disturbed by the action of the plant which 
closed its leaflets against her abdomen. Upon withdrawal 
of the abdomen the eggs were hidden from sight. 
Papilio celadon Lucas 
Egg 
Greatest diameter 1.0 mm. Height .9 mm. Light green in 
color. Nearly spherical. Surface smooth except for a faint 
reticulation forming microscopic polygonal areas. Food 
plant not determined. 
Papilio polydamas L. 
First Instar 
Head height 1 mm. ; head width 1 mm. Head smooth, choc- 
olate. Few short black hairs. Length of body 3 to 6 mm. 
Body light chocolate. Covered with minute whitish hairs 
simulating a pubescence. Larger black hairs on legs, anal 
segment, and slightly protruding substigmatal areas. Spir- 
acles, legs, and thoracic shield dark chocolate. A row of 
