GENERAL COCOONING HABITS OF SPIDERS. 



115 



FIG. 112. 



FIG. 113. 



FIG. 116. 



FIG. 112. Cocoon of Theridium frondeum, magnified. FIG. 113. Tile same, natural size, suspended 

 in natural site. FIG. 114. Cocoon of Argyrodes trigonum, much enlarged, to show the structure. 

 FIG. 115. The spiral thread on the cap and stalk. FIG. 116. Cocoons of Ero variegata, twice 

 natural size. (After Blackwall.) 



