1 88 
Psyche 
[March 
(4) Major workers also serve as a storage caste. Their abdomens 
are partially filled with exceptionally large fat bodies. They also 
store a disproportionate share of sugary liquids collected by the col- 
ony. When this food is superabundant, the majors reach a higher 
level of repletion. When the colony is subsequently starved, the 
majors regurgitate the liquid back to the rest of the colony faster 
than they receive it. 
Literature Cited 
Forel, A. 
1874. Les fourmis de la Suisse. Societe Helvetique des Sciences Natu- 
relles, Zurich, iv + 452 pp. 
Wilson, E. O. 
1971. The insect societies. Belknap Press of Harvard University Press, 
x + 548 pp. 
Wilson, E. O. and F. E. Regnier. 
1971. The evolution of the alarm-defense system in the formicine ants. 
American Naturalist, 105: 279-289. 
