376 SCOLYTID^. [LeConte. 



are dunded, aid tli3 p.irts connected by a smooth corneous line. The 

 scape of the ante-iniB is long and strongly clavate ; the funicle is 5- 

 jointed, the first joint stout, as long as the others united ; 2-5 gradually in- 

 creasing in thickness, short, closely united, forming a conical mass, to which 

 the club is attached at the upper extremity of its base ; the latter is strongly 

 compressed, puljescent, and witliout sutures on both sides ; oval-pointed, 

 with the lower sido less curved than the upper, and broader at the base 

 than towards the tip, so as to be slightly securiform. The el3'tra are 

 rugosely punctulate, scarcely striate, clothed with small stout scales, and 

 with rows of scarcely longer erect brislles. The ventral segments are 

 nearly equal, but the first and fifth are a little longer. The tibise are mod- 

 erately dilated with three or four small teeth near the tip, which is obliquely 

 truncate ; the inner angle is slightly mucronate ; the tarsi are slender, the 

 third joint not emarginate, the fourth small but distinct, and the fifth as 

 long as tlie others united, with divergent simple claws. 



1. P. rufipannis Lee, Tr. Am. Eat. Soc 18G8, 169; Apate (Lepisomus') 

 rufipenn's Kirb}', Fauna Bor. Am. iv, 193, tab. 9, fig 2 ; A. (L.) wgriceps 

 Kirby, ibid, 194, (imma'ure); P. saginatus Mann., Bull. Mosc. 1853, 237; 

 Ifyle^imis I'ufipennis Mann., ibid. 1853, 237. 



New Hampshire to Alaska, also in Georgia. The surface of the elytra 

 's slightly asperate near the base, which is very acutely margined ; the 

 rows of punctures which represent the strite are less indistinct in some 

 specimens than in others. The male has the front slightly impressed, with 

 a small frontal tubercle sometimes divided into two. Length 2-2.5 mm.; 

 .08-. 10 inch. 



In som3 specimens a few separate lenses are scattered along the line 

 between the two parts into wliicli tiie eyes are divided ; in others thesj 

 are entirely absent. 



Apdte {Lepisomiu) hrevicornis Kirby, loc. cit. 194, may belong to this 

 genus, and would difter by the shorter antenntB with smaller club. The 

 type is unfortunately in bad condition, and quite irrecognizable. 



Group IL Phlwotribl. 



This gr.iup is intermediate between the preceding and the following, and 

 differs from both by the antennal club being composed of three separate 

 joints, which in PMceotribuH form a lamellate ma's, and in the European 

 genns PhlceopJdhoms a loosely articulate club as in many Clavicornia. Dr. 

 Cliapuis describes the antennsB as frontal ; but I see no special difference 

 i 1 their position from that observed in the preceding and following groups. 

 The head is but very little prolonged in front of the eyes, and there is no 

 preocular groove for the reception of tlie scape of the antennae such as is 

 observed in the two foll:)wing groups. The tibiae arc dilated, compressed, 

 obliquely rounded and serrate at lip, wi h the inner angle slightly muero- 

 mte ; the tarsi have the joints 1-3 short, gradually a little wider ; third 

 not emarginate ; foirth very small ; fifih as long as the others united, witli 

 divergent simple claws. The basal margin of the elytra is acute and 

 serrate. 



