Insects Injurious to the Potato and Apple 



575 



Fig. 4. 



TEN-LINED POTATO BEETLE— COLORADO POTATO BEETLE 

 — DORYPHORA DECEMLINEATA.— 5ay. 

 a, a, eggs ; b, b, larva of different ages ; c, pupa ; d, perfect insect ; 

 e, right wing cover ; f, leg enlarged. 



It might be taken for granted, in view of all that 

 has been published about this distinguished depreda- 

 tor, that every one was already fully acquainted with 

 its appearance, habits, and the remedies against its rav- 

 ages, but I am not altogether certain that a somewhat 

 full account of the insect will not be useful. I had 

 specimens sent me last summer from the western border 

 of the State, and it probably occurs in the southern 

 border, at any rate it is not unknown in Massachu- 

 setts and there is very good reason to believe that during 

 the coming season it will be found in more than a few 

 places in the State. Should it occur even in considerable 

 numbers as it may, though probably not, during 1876, it 

 will not be nearly as destructive as a year or two hence if 

 its increase is not effectually checked. It is to be remem- 



