BY A. RAFFRAY. 195 



F 2. Longitudinal furrow of the head extending as 



far back as the neck; $ 2nd ventral segment 



beating in the middle of the posterior edge 



two small tubercles lineatm, King. 



F 1. Longitudinal furrow of the head not extending 



back further than the middle of the vertex. 

 G 2. Head shorter and broader, a little dilated in 



the middle; the fovea on the vertex is large, 



rounded behind, broader than the longitu- 

 dinal furrow; close to the eyes, on each side, 



is a strong blunt tubercle; maxillary palpi 



shorter than the antennas; $ second ventral 



segment with an oval impression. Long. 



2 • 10-2 30 mm antipodum, West w. 



G 1. Head longer and more slender, the fovea on 



the vertex smaller, angulate behind, not 



broader than the longitudinal furrow; the 



tubercle close to the eyes, on each side, is 



hardly conspicuous; maxillary palpi as long 



as the antennas. Long. lS0-L90mm leanus, n.sp. 



E 1. Pubescence rather dense, squamose, more 



especially on the head, two punctures at the 



bottom of the fovea of the vertex; maxillary 



palpi shorter, club of the 4th joint as long as 



the peduncle brevipalpis, Schfs. 



.D 1. Base of the prothorax behind the transverse 



furrow smooth and shining, very narrow; 



frontal furrow not extending on the vertex 



and ending abruptly between the eyes and 



two sharp tubercles ; vertex somewhat de- 

 pressed with a very small tubercle in the 



middle; maxillary palpi very slender, as long 



as the antennas, club small tuber culifrons, n.sp. 



•C 1. Transverse furrow of the prothorax interrupted 



in the middle by a median somewhat scpuare 



fovea limited on each side by a very short 



carinule. 

 D 2. Lateral fovea of the prothorax very large, 



triangular, distant from the edge which is 



somewhat carinate ; maxillary palpi not 



longer than the antennas insigni.s, Schfs. 



D 1. Lateral fovea of the prothorax rounded, 



smaller, situated close to the edge which is 



rounded. 



