CADDIS IXIES. 



383 



nests now before me, there are some very remarkable instances 

 of the manner in which the insect has been obliged to adapt 

 itself to circumstances. The most common style of case is that 

 which is composed of a number of sticks and grass stems laid 

 longitudinally upon each other like the fasces of the Eoman 

 consuls. Of these I have specimens of various sizes and shapes, 

 some being barely half an inch long, while others measure four 



times that length, the sticks being sometimes placed so irregu- 

 larly, that the home of the architect is not easily seen. The 

 creatures are not at all particular about the straightness of the 

 sticks, but take them of any degrees of cun'ature, as in one of 

 the examples represented in the illustration, where the stick is 

 not only curved, but has a large bud at the end. 



