No. 199.] 533 



The Larva at length becomes a Pupa, so called because the perfect 

 insect is found wrapped up like an infant in swaddling clothes. This 

 state was formerly called chrysalis and aurelia, because in some of 

 the Pupa it had gilding on it, which is the meaning of both chrysalis 

 and aurelia. Swammerdam made out distinctly the whole perfect 

 znsect so wrapped up as not to be sensible to common observation. 

 The larva are very voracious, and are generally larger than the per- 

 fect insect. The third and last state is termed Imago, — image. The 

 creature is now perfect ; is now capable of propagating its species. 



Mr. Pike remarked that the rose bugs show so great a preference 

 for wild grape vines over our cultivated sorts, that where the wild 

 vines are placed among the civilized ones, the rose bugs attach them- 

 selves to the wild ones altogether. The cherry tree is a favorite of 

 this bug which is generated in it, and not in holes in the earth as Dr. 

 Underbill has supposed. My object in introducing the wild vines on 

 ray plan was to form an arbour of them j not in regard for its fruit. 



Judge Van Wyck. — My Isabella grape vines have been sometimes 

 infested with the rose bug. I tried to smoke them with sulphur but 

 it seemed to have no effect on them, I also tried other disagreeable 

 smokes in vain. The rose bug goes into the ■ germ of the grape 

 blossom and ruins the fruit. I finally resorted to broad tin psns and 

 brushed off quarts of the bugs into them. Agassis recommended this 

 course or something like it, to be pursued in whole districts at once 

 against insects generally, and by the certain death of some to dimin- 

 ish their numbers. 



Mr. Pike. — I tried to kill insects by pouring strong brine about the 

 roots of fruit trees. 1 killed some of the trees by it. 



Judge Van Wyck. — Common Salt is useful when applied in moderate 

 quantities; it is very good for the growth of grapes and some other 

 plants. 



Mr. Pike. — The hardy scaly shells of many of the bugs prevents 

 their being destroyed by strong applications. 



