336 
Psyche 
[December 
H 9 reen 
I black 
o orange 
p pink 
pb pink-brown 
rb red-brown 
w white 
Q-rb 
A 
Figure 7. Dorsal spot at junction of abdominal segments 3 and 4. A: early first 
instar (individual no. 1); B: late first instar(no. 1); C: fourth instar(no. 8); D: early fifth 
instar (no. 4); E: late fifth instar (no. 12). Scale = 2 mm. 
spent in any given instar was 9.6 days (range 6-16 days, s: 2.4 days, 
N= 63). Every larva spent four days molting from each instar to the 
next: new cuticle formation occurred during the first two days, 
ecdysis took place on the thrid day, and by the end of the fourth day 
the new cuticle had hardened. No feeding took place during these 
four-day periods. These data reveal that the larvae were engaged in 
molting-related activities approximately 40% of the time, and feeding 
and resting 60% of the time. 
Head capsule 
Beginning with the second instar, the head bore four pairs of horns 
(Figure 9, C and D) radiating from it in a transverse plane 
perpendicular to the body axis. The larger and most dorsal two pairs 
were slightly expanded towards their rounded tips, while the smaller 
and more lateral two pairs were conical. The fine white simple setae 
which covered the head did not obscure pattern details. Setae on the 
horns were longer and projected from their tips. 
