INSECTS. 341 



of grapes when half grown. This worm is thick, cylindri- 

 cal, tapering anteriorly, pale green, freckled with pale 

 yellow dots, and, when mature, a pale dusky olive ; 2.25 

 inches long. The pupa is found under leaves on the 

 ground ; the moth emerges in June. 



Philampelus satellita, and P. Achemon, the Satellite 

 and Achemou Sphinges, are large green worms that feed 

 upon the vine. They bury themselves in the ground 

 when going into the pupa state, and remain until the next 

 July. The worms are seen in August and September. 



Procris Americana, or the American Forrester, is found 

 feeding upon the grape leaves at mid-summer, (June 22). 

 The worms feed gregariously on the surface of a leaf, 

 some twenty side by side, leaving only a skeleton behind 

 them when small, and consuming the leaf when older. 

 They are small, 0.60 inch long ; yellowish. The moth is 

 blue-black, with a bright orange neck. 



Alypia 8-maculata, or the Eight-spotted Forrester, is 

 a light blue worm, 1.25 inches in length. They leave the 

 vines in July, and spin a web on the ground ; the moth 

 appears in May ; it is black, with orange shanks ; each of 

 the fore-wings has two large, light yellow spots ; the hind- 

 wings have two white ones. Width 1, to 1.50 inch. 



JEGERIANS. 



JEgeria exitiosa, (Say), or Trochilium exitio&um, is 

 well known in its larval state as the Peach tree Borer, and 

 is often so destructive as to kill the trees. The habits of 



