wide as the head. The head is about one-fourth as wide as the widest 

 portion of the body. The fully developed larva in ordinary resting 

 position measures nearly half an inch, while extended it measures a 

 full half inch. 



Although, like most Curculionida?, the larva has no true legs, it 

 crawls with comparative ease, though slowly, by means of the flattened 



lower surface, being aided somewhat 

 by the transverse wrinkles. The 

 hairs are so short as to be of little or 

 no apparent assistance in locomotion. 

 The pupa has not been seen by the 

 writer. 



The occurrence of the chinquapin 

 weevil has been noted at Providence, 

 R. L; in the neighborhood of New 

 York City; Moorestown, Woodside, 

 Orange Mountains, N. J.; at State 

 College, Allegheny, Jeannette, Mount Joy, Sylvania, Princetown, and 

 Eastmont, Pa.; Newark, Del.; Baltimore, Md. ; Virginia; West Vir- 

 ginia: Washington, D. C. ; Cincinnati and Newark, Ohio; Illinois; St. 

 Louis, Mo. ; Sharpstown, Ind. : Clarkville. Tenn., and Rosedale, Kans. 



Fig. l.—Balaninus proboscidcus: larva, about 

 four times enlarged, at left; head much en- 

 larged, at right (original). 



the chestnut; weevil. 



{Balaninus rectus Say) 



The lesser chestnut weevil (fig. 8) has the scape of the antenna longer 

 than in proboscideus and the 

 first joint longer than the sec- 

 ond. In the female the ros- 

 trum is strongly curved, the 

 thorax is longer than wide, 

 and the el}'tra are strongly 

 acuminate apieally. The tooth 

 with which the femora or thighs 

 are armed is small, with the 

 entering angle rounded. The 

 average length of the body is 

 about one-half of an inch, but 

 the size varies, as in all of these 

 insects. 



The distribution of these two 

 weevils does not differ markedly, but proboscideus appears to be some- 

 what more abundant southward, while rectus is the more prevalent 

 northern form. Where chestnut growing is an important industry 

 the two species appear to be nearly equally numerous. 



The chestnut weevil occurs in Canada; Mount Tom and Marion and 



Fig. 8.— Chestnut weevil (Balanimis rectus): a, female 

 beetle: b, same, lateral view: c, head, with rostrum 

 and antenna of male, four times natural size (origi- 

 nal >. 



