ENTOMOLOGICAL SOCIETY OF ONTARIO. 



75 



CURCULIONID.E. 



34. Ithycerus noveboracensis, Forst — This species is the largest representative of the 

 family which occurs with us. It has been found ! at times a serious pest in orchards, 

 injuring apple, peach, pear, plum and cherry (see Insects Injurious 

 to Fruits, Saunders, p. 196.) According to Riley it infests the oak, 

 in the twigs of which the larva tunnels. With us it seems to in- 

 habit the beech, upon vhich I have frequently taken it, in the 

 month of June. At Chelsea, a few miles from this city, it was very 

 abundant one season, individuals being observed on every tree ex- 

 amined in a grove of beech. It may be readily recognized among 

 our snout-beetles by it greater size, being five-eighths of an inch 

 long, and robust. Beak, broad and stout with a ridge down the 

 centre ; thorax cylindrical, a little narrowed in front ; elyti'a twice 

 as wide as thorax, and declivous or pinched in at the apex to fit the 

 corpulent body ; colour greyish ; the thorax with three indistinct 

 pale stripes, and each elytron also with three whitish lines, interrupted 

 with black spots, lower surface and legs whitish. Fig. 77. 



35. Cryptorhynchus bisignatus, Say. — A pretty little brownish 

 weevil, with an oblique white dash on each elytron, much resembling 

 in shape the Plum Curculio but smaller and not tuberculated. Mr. 

 ■Chittenden has found it upon both oak and beech trees and be- 

 lieves that it lives under the bark of these trees. 



36. Acoptus suturalis, Lee. — Mr. Chittenden has taken specimens of this beetle from 

 beech wood. It has been recorded by me (Ann. Rept. xiv., p. 50) as boring in hickory, 

 and the following description was there given of it. A small, black beetle (length one- 

 eigbth of an inch), densely clothed beneath and more sparsely above with short yellowish 

 hairs. The elytra are striated and in unrubbed specimens have a wide band of yellowish 

 pubescence across the base, and a narrow one near the tips, which are black, as is also 

 the space between the bands ; a white line along the suture interrupts the basal band. 



Fig. 77. 



Oalandrice, 



37. PMceophagus apionoides, Horn. — This is a very small and narrow blackish 

 weevil about an eighth of an inch long, with punctured thorax and striated elytra, 

 which Mr. Chittenden found to occur upon the beech with the species just mentioned, 

 and which he believes to breed in the wood likewise. 



36. Phlceophagus minor, Horn — As its name indicates this species is smaller than 

 the preceding, but otherwise closely resembles it, except in being of a paler colour, a red- 

 dish brown. Mr. Chittenden states that it breeds in the beech and also occurs on the 

 elm, 



38. Stenoscelis brevis. — This species which is stated to breed in the wood of beech 

 has been found by me also infesting oak, hickory, maple and poplar. It is a black 

 cylindrical beetle, one-eighth of an inch long, with faintly punctured thorax and 

 striated elytra ; beak short and smooth, giving it much the appearance of some of the 

 bark-borers which belong to the next family. 



ScOLITIDjE. 



39. Monarthrwn fasciatum, Say. This little species bores in the living tree in the 

 same manner as the Apple Bark-borer (M. mali, Fitch) which infests the apple, and 

 which it much resembles. 



40. Xyleborus obesus, Lee. — This is also a small insect which bores in the living 

 tree, and which much resembles a destructive species (X. pyri, Peck) which attacks 

 the pear and which has been named the Pear Blight Beetle. 



