DOLBA HYL^US 161 



Five clays after this change the yellow granules be- 

 came faint dots, and the obliques next the head grew 

 very faint, being yellow edged with green, while all 

 the others were bright pink edged with deep blue- 

 purple. The horn was of this same deep blue-purple, 

 except the green base. This purple is exactly the 

 color of ripe inkberries. The spiracles were now dark 

 in ovals of white edged with a faint blue-purple line, 

 and were small, merged in the pink obliques on six 

 segments, but conspicuous on the others. 



The caterpillars fed for fifteen days after the fifth 

 molt, and grew to a length of two and a half inches. 

 Then they stopped eating and lay quiet on the tin. 

 Out of doors they go into the ground. 



Eight days later the pupae cast the caterpillar-skin, 

 having passed from the egg to the pupa in fifty-four 

 days, a long life for sphingid larvie. Some of the 

 pupae were a little over an inch and a quarter long, 

 the average being just about an inch and a quarter, 

 with a short tongue-case appressed to the thorax. The 

 color was bright brown. 



Few, even among sphingid larvae, are as pretty and 

 dainty-looking as Dolba hylceus^ and the clean, clear 

 green of the inkberry sets them off and adds to the 

 daintiness. They are delicate caterpillars and must 

 be carefully treated, having enough food supplied to 

 enable them to go from one leaf to another without 

 eating all of any leaf. 



We cannot liear of any place wliere they are really 

 common, but their range is wide — "from Canada 

 to Florida, and west to Iowa," Mr. Beutenmiiller 

 says. 



