CITHERONIA REGALIS 279 



each side. There were velvety-black bands between 

 the thoracic segments and behind the third segment. 

 The dorsal long horns were tan at base, then black, 

 rough, and no longer branching, and curved back- 

 ward, except those on the first segment, which pro- 

 jected over the head. The fourth, fifth, and eleventh 

 segments were lighter on the dorsum. The venter 

 was very dark brown. The " obliques " were yellow, 

 and merged in a wavy line from the fourth to the 

 twelfth segments. The legs were tan-colored, with 

 black marks ; the props nearly black, with red lines ; 

 the anal props and shield enormous, horny, rough, tan- 

 colored, with black marks. The spiracles were large, 

 oval, with a light line around them. 



They ate ravenously, beginning at the stem end of 

 a leaf and mowing down great curves from edge to 

 midrib, never eating the whole leaf, but leaving at 

 least the last third of its length untouched, until 

 nearly grown, when they ate all the upper part, leaving 

 the base. 



As they grew older they changed in color, some 

 being almost green on the dorsum, with an orange 

 plate on the first segment, and orange anal plate and 

 props, being brown elsewhere. The horns and spines 

 became blue-black and iridescent. Some caterpillars 

 were yellow-brown, some red-brown, some of a queer 

 greenish color with blue-green transverse bands. 



On August 9, the thirty-third day, they measured 

 five and a half inches in length, and were large in 

 proportion. They stopped eating and crawled about 

 somewhat, not nearly as much as P. celeus larva3, and 

 pupated four days later. 



