HALESIDOTA CARY^ 209 



change was that they were more densely hairy. Seven 

 days later they molted for the fifth time, and were 

 nearly an inch long, unchanged in marks. 



In eight days the sixth molt occurred. The cater- 

 pillars were now one and one eighth inches long, had 

 black, shining heads and legs, dull black venter and 

 props, and the hairs were as dense as the pile of the 

 best plush or velvet. The first segment had four black 

 pencils, the second and third had each four long white 

 pencils, the tenth had two long black pencils on the 

 stigmatal lines, and the eleventh and twelfth had each 

 two long white pencils. On the dorsum, pressing 

 against the black dorsal pencils on each side, was a 

 dense, short white pencil. There was a transverse 

 black line between every two segments. 



They ate voraciously for nine days, and were an 

 inch and a half long when they began to spin their 

 cocoons. 



The cocoons were an inch long, egg-shaped, not very 

 stiff, but opaque, and were ornamented by the hairs of 

 the black and white pencils, shed at this time, so that 

 the finished cocoon was like a gray egg, very sym- 

 metrical and pretty. Close examination of the cocoons 

 showed that the short hairs had been j^ushed through 

 the silk and protruded at right angles to the cocoon, 

 giving an even surface like that of a closely cut lawn 

 or a bit of velvet. 



The pupae formed in four days and were of a bright 

 yellow-tan color, five eighths of an inch long, and 

 stout, the abdomen larger in girth than the thorax. 



We were not sorry when these pretty caterpillars 

 were safe in their pretty cocoons, for in their latter 



