GENERAL COCOONING HABITS OF SPIDERS. 



115 



kr'^h^'^^'^q 



Fig. 114. 



Fig. 112. Cocoon of Theridlum frondeum, magnified. Fig. 113. The same, natural size, suspended 

 in natural site. Fig. 114. Cocoon of Argyrodcs trigonum, much enlarged, to show the structure. 

 Fig. 115. The spiral thread on the cap and stalk. FiG. 116. Cocoons of Ero varicgata, twice 

 natural size. (After Blackwall.) 



