4/5 MR. C. O. WATERHOUSE ON THE [Apr. 5, 



A short, broad species. Head closely and rugosely punctured, 

 scarcely impressed on each side above, slightly broader posteriorly 

 than in front, nearly straight-sided ; the median carina is fine, and is 

 continued back to the vertex: the ocular carina is very short. 

 Thorax very closely and rugosely punctured, at the anterior angles 

 very slightly broader than the head, much broader behind the 

 middle, narrowed again at the base, gently reflexed at the sides, 

 with two strong dorsal costee ; the anterior angles, although not 

 very acute, are decidedly prominent ; the sides are strongly angular 

 considerably behind the middle ; the base is divided into three equal 

 parts by the points of juncture with the dorsal carinse. Elytra one 

 quarter longer than broad, depressed, rather suddenly deflexed at 

 the apex ; each elytron with three well-m.arked costse, the second 

 distinctly abbreviated at the base and apex ; the first interstice with 

 two lines, the second and third with three lines of strong deep 

 punctures. Legs obscure pitchy. 



10. Opatrum costiferum, n. sp. (Plate XLIII. fig 2.) 



Breviter ohlongum, convexum, latum, nigro-piceum, supra sabulosO' 

 lutosum ; elytris costatis, cosfis tubercidatis . 



Long. 6 lin., lat. 4 lin. 



Head covered with small, round, shining, black granules placed 

 moderately close together. The clypeus has its front margin 

 straight on each side of the deej) triangular incision ; at the sides it 

 is suddenly obliquely turned back, so as to form an obtuse angle 

 with the antcnnal orhits. The third joint of the antennsB is at least 

 as long as the three following joints together ; the fourth joint is a 

 trifle longer than broad, the fifth to eighth are nearly globular ; 

 the ninth and tenth are distinctly transverse, and a little broader 

 than the eighth ; the eleventh is nearly globular, scarcely narrower 

 than the tenth. The thorax is twice as broad as its length in the 

 middle, deeply emarginate in front for the reception of the head, 

 convex on the disk, impressed at the sides, arcuately narrowed in 

 front of the middle ; the anterior angles are blunted right angles : 

 the sides behind the middle are parallel ; the posterior angles are 

 blunt, and a little greater than right angles ; the base is broadly lobed 

 in the middle, the lobe itself straight next the scutelluni ; all the disk 

 rather closely covered with depressed conical black tubercles ; there 

 is a fine median impressed line. Elytra at the base scarcely broader 

 than the thorax, a trifle broader at the middle, scarcely longer than 

 broad, very convex, descending at the apex, very gently arcuate at 

 tbe sides; each elytron has seven slightly raised broad tectiform 

 costse, a line of small round obtuse tubercles being ranged along the 

 summit of each costa. Tarsi short and thick. 



This species has somewhat the appearance of Saragus IcevicoUis, 

 Oliv., and at first sight would scarcely be taken for an Opatrum. 



Apithesis, n. gen. 

 Mentum transversely trapeziforni, narrowest at the base; labial palpi 

 short and thick, the apical joint large, thick at the base, narrowed 



