LARGE, NAKED WORMS EATING THE LEAVES 



169 



each side of its body ; P. sexta has only seven markings instead of eight, 

 and these are merely oblique hnes. Either form is found to some 

 extent both North and South. The full-grown worm 

 is often 3 inches long. The adult is a large, strong- 

 flying moth, seen in evenings. 



When the worm has completed its 

 growth, it enters the soil to a depth 

 of 4 or 5 inches, and makes a cell. 

 In the South worms that mature early 

 will emerge in the latter part of the 

 same summer, thus giving a second 

 generation. Emergence of the adult 

 moths begins in June, but continues 

 for fully two months. A large pro- 

 portion of the adults emerge rather 

 late than early, and the result is that 

 worms are most numerous in August. 

 Hand picking is universally prac- 

 ticed. The worms may be poisoned 

 by dusting lightly with Paris green or arsenate of lead. The moths 

 may be killed by placing a few drops of arsenide of cobalt in the flowers 

 of jimson, which they frecjuent. Prepare by mixing arsenide of cobalt, 



Fig. 189. — 

 Pupa of Phlc- 

 gethontius sex- 

 ta. Slightly 

 reduced. Orig- 

 inal. 



Fig. 190. — Pu- 

 pa of Phlegethon- 

 tius quinquemac- 

 ulata. Slightly 

 reduced. Orig- 

 inal. 



Fig. 191. 



Adult of Phl((jethontius quinquemaculata. 

 Original. 



Slightly reduced. 



