1980] 
Stuart & Bell — Leptothorax 
209 
the vibratory signal can be transmitted through the ant s legs to the 
substrate. L. muscorum workers will stridulate when restrained, 
fighting, dissecting insect fragments, engaging in trophallaxis with 
adults and larvae, and when attempting to move a larva adhering to 
the substrate. In addition, in food and water deprived colonies, 
workers will also stridulate when grooming other adults and larvae, 
and when consuming liquid food or water. The significance of these 
findings is discussed in terms of the possible function of stridulation 
in the above contexts. 
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