210 



J. L. LECOXTE, M. D. 



to the extremity, which is abnut twice as wide as the base; third joint 

 triaiiLiular, outer side about uiio-half Ioniser than the inuer side; termi- 

 nal side thick with a reuif jrm sponjry surface. 



Maxilhe exposed; base lar>j:e, corneous; Iob(!S small, but separate, 

 ciliate with lonj^ hairs; maxillary palpi four-jointed, tirst joint cylin- 

 drical, with large globose condyle, body of joint extending as fir as 

 the hairs of the maxillary lobes; secoml joint also with lari,'e globose 

 condyle, as long as the first joint; third joint somewhat shorter, and 

 more dilated externally; fourth joint triangular with a reniform pal- 

 parium like that of the labial palpi. 



-Mandibles long, straight ou the inner side; broadly bisinuate on the 

 under side, broadly dilated on the outer side into a lobe, extending 

 from the base to the middle; condyle large, immersed in the articula- 

 tion, so as to indicate the motion to be pirtly vertical, and partly 

 obliquely outwards; probably by means of powerful muscles, which 

 have their attachment in the large genal processes mentioned below. 

 Antennfe eleven-j )inted inserted under the lateral margin of the front, 

 about as long as the mandibles; surface shining, without distinct sensi- 

 tive spaces; first joint longer, second joint shorter than the others, 

 which are transverse, slightly oblique ou the upper side, and only 

 feebly compressed ; they are sparsely punctured, and clothed with 

 long coarse hairs; on the anterior face of the fourth and fjUowing 

 joints is a semicircular space extending to the tip, which is le.>s shi- 

 ning, and appears to represent the sensitive spaces seen in some other 

 Coleoptera. 



Head elongate, deflexcd ; anterior margin of epistonia feebly trisinu- 

 ate, sfightly produced beyond the condyle of the mandibles; genae 

 produced perpemlicularly di)wnwards into a stout process as long as 

 the m:iMdil)les. and connate at the upper end with the front, by a dis- 

 tinct though fine obliquj suture, running from the base of the mandi- 

 ble to the front edge of the insertion of the antenuic; side margin of 

 front prominiMit fr.nii the insertion of the antenna) to the middle of 

 the upper mar.:in of the eyes, which are small, obliijue, twice as long 

 as wide, and finely granulated. Behind the eyes the sides widen 

 ul)li(|iiely, an] the hind angles extend over the anterior angles of the 

 protliorax ; the occiput is convex, but separated from the head proper 

 by a deep curved excavatio)i, the anterior face uf which ascends ahuost 

 ])erpenJiciilarly to the main surface of the lie.id. Between the eyes 

 there are two shallow iuipressious, and more anteriorly a still fiinter 

 one. Ou the under surface of the head, besides the transverse ridge 



