262 



XEW YORK STATE MUSEUM 



most snout beetles, extends almost directh' forward. The male is larger 

 and instead of a slender beak, has enormously developed mandibles, which 

 are probably of considerable service in excavating the bark preparatory to 



egg laying and also in the fierce bat- 

 tles individuals of this sex are said to 

 wage. This species is generally dis- 

 tributed in New York State, though 

 rarrl\- nut with in numbers, probably 

 because of its retiring habits. This 

 insect may be easily recognized by 

 reference to the accompanying illus- 

 tration. 



Description. The larva and pupa 

 have been described by Dr Riley as 

 follows : 



Larva. Leno-th, 



•55--75 incf 



diameter in middle of body, .05 inch. Body almost straight, cylindrical, 

 12 jointed, with a few faint hairs only on prothorax and around anus; 

 thoracic joints short, bent a little forward, swollen and broadly and deeply 

 wrinkled, with two especially prominent swellings on top of joints 2 

 and 3, converging towards head, and having each a granulated rufous 

 spot; the other joints with about three dorsal transverse wrinkles; 

 joints 5-9 subequal, as long as 1-3 together, twice as long as 4 ; 10-12 

 diminishing in length, slightly swollen, the anus retracted ; six very 

 small, 3-jointed thoracic legs, the terminal joint being a mere bristle ; 

 stigmata quite distinct and brown, the first pair much the largest, between 

 the fold of joints 2 and 3; the others on anterior fifth of joints 4-11, 

 the last pair more dorsal than the rest. Head pale yellow, darker around 

 mouth ; rounded, more or less bent over the breast, with sparse, stiff, 

 pale hairs springing from elevated points ; ocelli, none ; antennae not 

 visible, unless a dusky prominence lying close between mandibles and 

 maxillae be called such ; labium small, with two depressions and other 

 inequalities, the margins slightly angular, allowing the jaws to closely fit 

 around it ; jaws stout, triangular, the inner margin produced at middle into 

 a larger and smaller tooth, and with a slight excavation near tip ; maxillae 

 long, with but a short, horny cardinal piece ; the palpi apparently 2 jointed 

 and with difficulty resolved, on account of three or four other prominences 



