574 



HOMES WITHOUT HAIfDS. 



it differs in one respeut, namely, that it is not divided into 

 separate chambers, and has only one aperture. When the larvjE 

 sally out for the purpose of procuring food, they spin guide 

 lines, as is the case with many other caterpillars. But, instead of 

 going out singly into the world, each to find its own food in its 

 own way, they march out in regular order, like a military party 

 on a foraging expedition. 



PROCESSIOXARY MOTH AND CALOSOMA. 



A single caterpillar is always the leader, and often is followed 

 by one or two others in Indian file. Presently, however, the 

 caterpillars march two deep, and, if a large number should be on 

 the move, the line is sometimes from five to six deep. They are 

 all very close to each other, so that the procession flows on in 

 one unbroken line, and until the observer is close to it, he can- 

 not see that its component parts are moving at all 



On refening to the illustration, the reader will see that the 

 artist has represented a nest of the Processionary moth, part of 

 which has been torn open so as to show the absence of partitions 

 in the interior. A number of the caterpillars are also shown, 



