OP PHILADELPHIA. 319 



Lengtli more than one-tenth of an inch. 



[Belongs to Xijloteres. — Lec] 



5. B. PINT. — Dark chestnut ; elytra excavated at tip, each 



about four toothed. 



Bostrichus typonraphus ^ ,, , , ^ 

 ,, ^^ r ^ \ Melsh Catal. 



" pmi i 



Body somewhat hairy, chestnut brown : head with minute ele- 

 vated points : antennae pale rufous : thorax punctured, more par- 

 ticularly hairy before and on each side ; before the middle, with 

 numerous small elevated points, more acute towards the anterior 

 margin : elytra more particularly hairy each side,^ with striae of 

 transverse punctures; interstitial lines impunctured; tip trun- 

 cated obliquely, and excavated ; the exterior edge on each side 

 with four denticulations, of which the second from above is the 

 lai'gest, and the inferior one is smallest and most acute ; there 

 are sometimes two very small ones above, near the suture. 



Length three-twentieths of an inch. 



This species is very closely allied to B. exesus. It is very de- 

 structive to many species of pine. Mr. Z. Collins informs me 

 that it depredates on the larch, (^Pinus pendula ? Alton.) Dr. 

 J. Mease recently exhibited to me some sections of limbs of the 

 Silver pine (Pirms strohus) trees, which decorate the public 

 squares of this city, now discovered to be seriously injured by 

 the attacks of this insect. [258|] 



HYLURGUS Latr. 



H. DENTATUS. — Head plane ; body reddish-brown ; elytra with 

 impressed, punctured striae. 



Head blackish, with short hairs : antennae rufous : thorax 

 blackish, passing into dull rufous at base ', with numerous hairs 

 rather shorter than those of the head ; punctured : elytra dull 

 rufous, with numerous short hairs ; striate, the strise deeply im- 

 pressed, and giving the prominent basal edge a dentate appear- 

 ance ; interstitial lines rough, with raised points, which are more 

 prominent and destitute [distinct ?] towards the tip ; beneath 

 dark reddish-brown : feet rufous. 



Length nearly one-tenth of an inch. 



Resembles the frontalis Fabr. ; but the head is destitute of 

 spines, and the elytra are less prominently aculeate. I have re- 

 1825.] 



