LIMACODES SCAPHA 217 



Through this stage they ate only the green pulp of the 

 leaf, either on the under or the upper side, seeming to 

 have no preference. 



The fourth molt took place five days after the third. 

 The head was brown, very small and retracted. The 

 body was green, very four-sided, the venter and dor- 

 sum being wider than the sides. The dorsum was flat, 

 rising in an arch in the middle, the head and anal ends 

 being the lowest points of the arch. It was green, 

 yellower in the middle, the ridges brown, darker at 

 the anal end. Two brown patches touched the sub- 

 dorsal brown ridges near the middle, and four smaller 

 ones near the anal end. The sides were blue-green, 

 the venter was almost white. The spiracles were round 

 and inconspicuous. The caterpillars ate through the 

 fiber of the leaves now, and began at the edge instead 

 of anywhere in the middle. They were still small and 

 very inactive, remaining on one leaf until it was eaten, 

 even when fresh leaves were put close by them. 



In six days they molted for the fifth time. They 

 came out very deep green, except the pallid venter, 

 with a yellow dorsal line, and red or red-brown marks 

 on the dorsum, varying with each larva. No two had 

 just the same amount of red or marks of just the 

 same shape. Some had two white spots near the 

 anal end of the subdorsal ridges, others had none. 

 One or two were wholly green. Some had considera- 

 ble yellow, others none. The anal end was pointed, 

 and a few specimens had the middle of the dorsal 

 ridges — the apex of the dorsal arch — almost pointed, 

 certainly angled. They varied very much in size, 

 color, and shape, for some were much less sharply de- 



