174 
Psyche 
[Vol. 87 
mesothoracic spiracle showed as a slit 1.5 mm long. The cremaster 
bore numerous hooked setae. 
Pupal waxy greenness persisted until one day before eclosion, at 
which time the adult wing pattern began to develop (Figure 4). 
Pupation lasted eight days for the male and nine days for the 
female; emergence took place near 9 am on 2 June (male) and 4 June 
(female). 
The two individuals reared, their egg shells, larval head capsules, 
and pupal skins, are in the author’s collection, labelled as Rearing lot 
80-42. 
Figure 5. Larval head capsules: first instar (1-1), third instar (1-3), and fifth (final) 
instar (1-5). Scales = 0.15 mm, 0.30 mm, and 0.75 mm respectively. 
Table 2. Number of days spent in each stage by the two individuals of Dismorphia 
amphiona beroe (Rearing lot 80-42). 
inslar 
egg 
1 2 3 4 5 
pupa 
total 
8 
4 
4 4 3 5 7 
8 
35 
9 
5 
3 4 3 6 7 
9 
37 
Acknowledgements 
I would like to thank the Smithsonian Tropical Research Institute, 
Panama, for the use of their facilities, Mr. Gordon B. Small for 
identification of the butterfly, and Dr. Robert Silberglied for helpful 
suggestions. 
