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cases the injured nuts amount to nearly half the crop and in 

 others not more than 5 per cent are affected. The injury is simi- 

 lar in its nature to that done by the weevils attacking other nuts, 

 the meat of the nut being eaten by the stout, whitish grub which, 

 when full grown, escapes through a round aperture in the shell. 



The work of this weevil has been recognized for many years 

 but the species has been confused with others and it was not until 

 recent years that it was found to make the hazelnut its exclusive 

 food. The species was named and described by Frederick 

 Blanchard, in 1884, from specimens secured in Massachusetts 

 and New Hampshire. It has been found as far west as Minne- 

 sota and Texas and it probably occurs throughout the eastern 

 states wherever the hazel grows. 



The beetle is similar in color to the two that attack chestnuts 

 but may be distinguished readily from them by its shorter, more 

 robust form and by its very much shorter beak. It is about one- 

 fourth of an inch in length, the beak of the female being half as 

 long as the body and that of the male still shorter. 



Most of the information which I have gotten pertaining to 

 the habits of this species has been given to me by Mr. Nathaniel 

 Bacon, of Talcott, W. Va., who has a hazel plantation and who 

 is a careful observer of nature. 



The beetles seem to oviposit earlier in the season and to be 

 somewhat shorter lived than the other species. On July 29th, 

 1908, Mr. Bacon sent me a box of hazelnuts in which there were 

 many larvae and a few eggs of the weevil. Three weeks later, 

 August 13th, I visited Mr. Bacon's place and together we made 

 a thorough search for the beetles by examining the bushes and 

 by jarring them over sheets. We spent about half a day in the 

 search and Mr. Bacon continued to look for the insects at inter- 

 vals for several weeks thereafter but not a beetle was found. At 

 the time I examined the bushes there were many larvae and a 

 few eggs in the nuts but the beetles that had produced them had 

 disappeared. On August 30th the infested nuts were dropping 

 prematurely and the larvae issuing from them. On September 

 18th, Mr. 'Bacon wrote that he had just made a careful search 



