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A Butterfly Enemy of CiReen-Fly. 



This Chinese butterfly is related to our '" blues." The female lays her eggs among the green-tly that cluster on the shoots of bamboo, etc., 

 and the caterpillars that hatch from them subsist entirely upon the green-fly. The green-fly are attended by numerous ants for the sake of 

 their excretions ; but the ants take no notice of the caterpillars, though these are decimating the ants' domestic cattle. 



'^7 



