76 CRYPTONTCHTJS. 



Lahrum (fig. 18 h) crassiuu, transversum, antice declive. 



Mandibulce (fig. 18 c) arcuatse, acutse. 



Palpi maxillares (fig. 18 cZ) articnlo primo niinuto, duobus sequentibus 



obconicis, ultimo ovato, obtuso ; lahiales (fig. 18 e) articulo primo 



par\-o, duobus sequentibus elongatis, iUo obconico, hoc ovato- 



lanceolato. 

 Labium elongatum ; mento (fig. 18/) brevi, subquadrato, basi angus- 



tato; lujuM (fig. 18 tj) oblonga, apice acuta. 

 Caput (fig. 18 ^) inter antennas in spinam validam productum. 

 Oculi magni, postice truncati. 

 Thorax transverso-quadi'atus. 

 Scutelhim oblongum, apice obtusum. 

 Elytra elongata, apice rotundata. 

 Pedes breves, validi ; tarsis (fig. 18 i) latis, ungue bre\'i, inter lobos 



articuli praecedentis fere occultato. 

 Corpus elongatum, parallelum, subconvexum aut depressum. 



1. Cryptonyclius porrectus, Gyll. 



Hispa porrecta, Oijll, Schonh. Syn. Ins. iii. App. p. 6. pi. G. f. 5. 

 Alumus rostratuS; Kirby, Cent, of Ins. p. 444. u. 91. {Type in Cabinet 

 ofMit. Sac.) 



C. elongatus, angustatus, convexus, fulvus; antennis, thoracis hnea 

 media, eljtrorum apice, pectore, ventre pedibusque nigris ; elytris 

 punctato-striatis, \dx costatis. 



Long. 6 lin. 



C. similar in colouring and markings to the following insect, but with 

 the legs, the lower surface of the four anterior tliighs excepted, 

 entirely black; narrower and more convex, rather broader be- 

 hind ; thorax with its whole surface coarsely but not very 

 closely punctured ; elytra deeply punctate-striate, interstices less 

 distinctly costate. 



Hab. Sierra Leone. 



Collection of J. S. Baly. 



2. Cryptonychus Murray!, n. sp. Tab. VI. Fig. 5. B.M. 



C. elongatus, subdepressus, supra fulvus ; capite, thoracis ^^tta elytro- 

 rumque apice nigris ; subtus niger ; capite, thorace, femoribus an- 

 ticis quatuor infi'a, tibiisque anticis (his basi exceptis) fulvis ; ely- 

 tris punctato-striatis, iuterstitiis costatis. 



Long. 7 lin. 



C. elongate, broader and more flattened above than the last species, 

 the elytra distinctly costate. Head black ; neck fulvous, with a 

 broad medial longitudinal black line ; front produced into a broad 

 flattened spine, deeply grooved above, slightly dilated just before 

 its apex, the latter angled ; vertex -ndth a deeply impressed line 



