PAONIAS ASTYLUS 197 



The third molt was eight days later for the first 

 brood, seven for the second. The changes were slight, 

 the horns being now still less bifid, each tip being a 

 red granule or tubercle. Faint yellow obliques ap- 

 peared, and the legs and props were all red at tip. The 

 granulations of head and body were yellow. 



The fourth molt followed in nine days for the first 

 brood, in seven for the second. The head was green, 

 with yellow granules, and had red face-lines. The 

 green body was granulated with yellow, less roughly 

 than before. The yellow obliques were clearer. A red 

 horizontal line appeared on the side of the thoracic 

 segments, and a faint yellow subdorsal line. The red 

 spots and patches were brighter, larger, and more 

 numerous than before, those near the dorsal line often 

 suffusing the greater part of the segment as far down 

 as the lateral line. The anal shield was edged and 

 dotted with red. The legs and proj)s had red tips. 

 The spiracles were red. The caudal horn was rough, 

 green at base, tlien red, then ringed with yellow, then 

 darker red at tip. The 'tip ended in two red granules. 

 The horn was straight, stout, and inclined forward. 

 The red patches varied much, but the red increased on 

 the larvae as it did on the leaves, which were much 

 redder now than five weeks earlier. In fact, we often 

 wondered why we ever found one of these caterpillars, 

 they so exactly matched the leaves on which they fed, 

 and even their horns had two tiny tips, as had the next 

 year's buds of the blueberry. 



Some fed for seven days, some for nine, others for 

 ten, after the fourth molt ; then their colors grew dim, 

 and they lay on the tins, pupating in from four to 



