ACTIAS LUNA 259 



with setae. The legs and props were green. The 

 empty shells were left untouched, and the caterpillars 

 preferred oak to any other leaves provided. 



On the tenth day they molted. Their heads became 

 green, with two brown spots. The dorsal tubercles 

 grew reddish. These were the only changes except 

 increased size. 



On the fourteenth day they molted again. This 

 time the head was all green, with red-brown mouth- 

 parts; the legs and props were red-brown at tip, the 

 tubercles were yellower than the body, and a yellow 

 substigmatal line extended from head to anus. 



On the twenty-first day they molted again. The 

 tubercles had yellow tips ; the yellow substigmatal line 

 became conspicuous ; a yellow line appeared on the 

 anal plate and props, and a transverse yellow line on 

 the hind edge of each abdominal segment. Their 

 bodies were of a clear yellow-green, darker below the 

 lateral line and on the venter. 



On the twenty-eighth day they molted for the fourth 

 time, having no change of colors or marks. 



On the thirty-seventh day they passed a fifth molt, 

 and were unchanged except that their colors were 

 brighter. Some had bright red tubercles ; some had 

 yellow tubercles on the dorsum of the second and 

 third segments, and the rest blue with yellow tips. 

 Some had pale brown heads. Some were very blue- 

 green as they grew nearly full fed, others were golden 

 green. Some broods pivferred liickory, some birch, 

 others oak, butternut, and walnut. We hear that sweet- 

 gum is a very favorite food for hina^ but we have not 

 tried it with them. We have found them on willow. 



