476 Mr. F. Bates on New Genera 



Cilibe nitidula, n. sp. 



Very near to the preceding, and of the same form, but 

 smaller ; the colour black ; the entire upper surface much 

 smoother, and shining ; the punctuation finer and more open, 

 the interstices less distinctly elevated and reticulate : the 

 elytra do not present the shagreened appearance seen in 

 the preceding; they are more, and very distinctly, convex 

 behind the middle, and consequently more abruptly declivous 

 behind ; on the underside the punctuation and the rugosities 

 on the flanks of the prothorax and on the abdomen are similar 

 but stronger; the hind tibise are feebly but perceptibly 

 sinuous ; antennse &c. as in C. opacula. 



In the single example of this species before me, the head is 

 distinctly impressed on the crown ; the prothorax is gradually 

 and slightly curvedly narrowed from base to apex ; the apex 

 is strongly arcuately (and feebly sinuously) emarginate, the 

 front angles prominent, subacute, and directed forwards ; the 

 base is strongly bisinuate, the hind angles prominent, acute, 

 and slightly outwardly directed ; the lateral margins are 

 expanded (but less broadly so than in the preceding) and 

 slightly reflexed or concave, the edges irregularly thickened, 

 and the base and apex margined at each side only. There is 

 a large, distinct, outwardly curved impression at each side the 

 disk, extending from near the middle to the basal margin ; 

 the scutellum is transversely curvilinearly triangular and 

 closely punctured ; the elytra are distinctly convex behind the 

 middle, and are consequently more abruptly declivous behind 

 than in C. opacula ; the base is feebly sinuately truncated, and 

 between it and the base of the prothorax (and the hind angles 

 of the latter, which repose on the shoulders) there is a decided 

 open space, as in C. opacula ; the lateral margins are expanded 

 (but less broadly so than in the preceding species) and concave, 

 and there is the row of rugged foveae just within this margin, 

 as in C. opacula ; the disks of the elytra also present traces of 

 numerous narrow longitudinal costas ; the underside and legs 

 are of a deep brownish black, shining ; the antennae, tarsi, and 

 palpi are reddish brown. 



Length 7| lines ; elytra, width 3f lines. 



Hah. New Zealand. 



Cilibe otagensis, n. sp. 



Very close to C. opacula, and difficult intelligibly to define 

 in what it differs from that species ; it is, however, distinctly 

 narrower or oblong-oval, usually smaller, paler, more convex, 

 the base of the prothorax more closely applied to the base of 



