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Psyche 
[Vol. 92 
Fig. 2. Monads caribhaea worker holotype: A, side view; B, dorsal view. 
The pronotal humeri of the caribbaea types vary considerably, 
from well defined spines as in the holotype to simple acute angles 
approaching the condition that characterizes the second fossil spe- 
cies, pro/aminata. 
Monads prolaminata, new species 
(Fig. 3) 
Diagnosis (worker). A relatively large, robust species closely 
resembling the living M. laminata of northern South America and 
