Entomological Notes. 291 



state early in June, generally in the case which has been its home 

 while feeding; but they have been known to pass the chrysalis 

 state on the outside of this case. In a little less than two weeks 

 the chrysalis develops into a moth. " The wings of the moth meas- 

 ure, when expanded, about seven-tenths of an inch. Its body is 

 about three-tenths of an inch in length. The fore wings are pale 

 brown, with patches and streaks of silvery white; the hind wings 

 are plain, brownish white; the under side of both wings is pale, 

 whitish brown, but the bind wings are paler than the fore wings." 

 These moths lay the eggs for the next brood on the leaves of the 

 trees best adapted to the taste of the worms; these eggs hatch out 

 late in the summer; the young larva? feed during the fall, construct 

 their cases, provide a shelter of dead leaves, and go into winter 

 quarters when about one-third grown, as stated above. 



From the foregoing description of the habits of this pest, it will 

 be readily seen that the time best adapted for its destruction is 

 while in its winter quarters, as the dry leaves on the bare trees 

 plainly indicate where it may be found. As it is single brooded, 

 if this work is thoroughly done, one season will secure their ex- 

 termination. Prof. Riley and others recommend that instead of 

 crushing and otherwise destroying these dry leaves when gathered, 

 that they be put in a box and taken to some place where there are 

 no trees near, and the worms will then wander about for a short 

 distance and soon perish for want of food, and the ichneumon flies 

 and other parasites which prey upon them, will mature and con- 

 tinue their friendly services in our behalf. The application ot 

 arsenic, Paris green, English purple, and other poisons, woulc? 

 probably kill many of them while feeding upon the leaves, but no 

 application of this kind will reach them, to kill by contact, while 

 sheltered in their cases. 



The Round Headed Apple Tree Borer. 



i 



Saperda bivittata. — Say. 



This insect was first discovered by Say, in 1824, but for many 

 years very little damage was done by it in the orchards. It is sup- 

 posed to be a native of this country, and to have, for a long period, 

 preyed upon the wild fruit trees. When cultivated orchards in- 

 creased in number and size, they commenced their attacks on the 



