480 Mr. F. Bates on New Genera 



minutely granulose ; intervals between the costse irregularly 

 impressed with much larger punctures, and feebly reticulately 

 rugose, most distinctly so at the sides ; lateral expanded mar- 

 gins wide, distinctly extending to the apex, concave, faintly 

 punctured : underside shining black ; legs and antennae dark 

 reddish brown. 



Length 6^- lines ; width of elytra across the middle 3£ lines. 



Hab. Pitt's Island. A single example. 



Easily separable from C. elongata by the relatively broader 

 form, the subangulately rounded sides of pro thorax, the pecu- 

 liar punctuation of the head &c, the much broader expanded 

 lateral margins, which in the elytra are distinctly broadly con- 

 tinuous to the apex. 



Cilibe humeraMs, n. sp. 



Oblong or oblong-oval ; black; elytra sometimes with a slight 

 purplish-brown tinge, slightly shining, moderately convex. 

 Head moderately punctured, the punctures not crowded, the in- 

 terstices sometimes sparsely minutely punctulate : prothorax 

 distinctly less transverse than in any preceding species, sides 

 more or les3 strongly and obliquely narrowed from behind the 

 middle, slightly sinuously narrowed behind ; hind angles acute, 

 slightly outwardly directed; disk finely punctured, the punctures 

 more crowded at the sides, the interstices not perceptibly granu- 

 lose, sparsely minutely punctulate; a transverse, slightly bowed, 

 impressed line at each side the middle near the basal margin, 

 and sometimes a rounded fovea at each side the median line 

 near the middle of the thorax ; lateral margins moderately ex- 

 panded, a little concave, rugosely punctured, finely and some- 

 what uniformly thickened at the edges; apex deeply em arginate, 

 front angles prominent, acute, directed forwards : elytra slightly 

 emarginate at the middle of the base, obliquely and slightly 

 arcuately truncated at each side; humeral angle very pro- 

 minent, slightly rounded, reflexed, and deeply concave within 

 the angle ; disk finely rugulose, studded with small granules, 

 rather closely and finely but irregularly punctured, the punctures 

 largest and most crowded (and frequently, especially at the base, 

 more or less run together, forming indistinct irregular fovea?) 

 between the costse ; these very indistinct ; expanded lateral 

 margins rather broad at the base, gradually narrowing behind 

 and scarcely extending to the apex, concave in their basal 

 portion : underside shining, pitchy black ; legs and epipleural 

 fold with a reddish tinge ; flanks of prothorax and sterna more 

 or less strongly reticulately rugose and granulose ; antennas, 

 palpi, and labrum (sometimes) ferruginous ; anterior border of 

 epistoma rufescent. 



