COLEOPTERA 



obsolete at the apex ; lateral expanded margins very narrow, and con- 

 cave only at the base : underside brown, closely and somewhat coarsely 

 punctured, much more distinctly pubescent (especially on the abdomen) 

 than on the upper-side ; flanks of prothorax sparsely, pronotum closely 

 and coarsely, rugose-tuberculate ; legs rather long, reddish-brown ; hind 

 tibiae a little sinuous, front tibia with the outer apical angle strongly 

 dentiform ; tarsi elongate ; antenna and palpi ferruginous. 



Length, 5^ lines ; width of elytra, 2 J lines. 



New Zealand. One example. 



675. C. tibialiS, Bates; Ann. Mag. Nat. Hist., Dec., 1873. 

 Oblong or (rarely) oblong-oval, convex, entirely dark-brown, slightly 

 shining, anterior border of the head more or less rufescent ; epistoma 

 broadly emarginate in front, the sides distinct from the antennary orbits, 

 the angles broadly rounded ; head and prothorax rather coarsely and 

 closely punctured, the interstices on the middle of the former, and on 

 the sides of the latter, appearing a little elevated and somewhat reticu- 

 late ; prothorax strongly transverse, rather broadly and feebly, and usually 

 a little sinuously, emarginate at apex ; front angles not at all prominent, 

 convergent; sides more or less rounded (ordinarily they are well rounded), 

 more or less strongly incurved anteriorly from the middle, less strongly 

 and a little sinuously posteriorly ; hind angles acutely produced, diver- 

 gent ; lateral margins not distinctly expanded, the edges very finely 

 and almost uniformly thickened ; the three impressions by the basal 

 border always obscure, sometimes obsolete ; elytra oblong or oblong- 

 oval, the punctation finer than on the prothorax and with a disposition 

 to run together between the costae ; costae more or less distinct ; the 

 intervals, or interstices, more or less distinctly reticulate-rugose at the 

 base, sides, and apex ; lateral margins narrowly expanded, usually not 

 distinctly extending to the apex, strongly reflexed at the base, rather 

 coarsely transversely rugose-punctate ; flanks (save the lateral margins) 

 of prothorax and sides of abdomen longitudinally wrinkled ; flanks of 

 meso- and metasterna coarsely punctured ; abdomen finely punctured ; 

 under-side shining black ; epipleural fold and legs reddish-brown or 

 piceous ; antenna elongate, and, together with the palpi, ferruginous ; 

 outer apical angle of the anterior tibia strongly dentiform. 



Length, 6-7^ lines ; width of elytra, 2^-3! lines. 



New Zealand. Seven examples. 



The apical emargination of the prothorax is distinctly more feeble 

 in this species than in any of the others, and the front angles least 

 prominent ; it is also the most convex, and ordinarily the most oblong 

 form. 



676. C. impressifrons, Bates; Ann. Mag. Nat. Hist., Dec., 

 1873. Oblong- or elongate-oval; ordinarily black, the elytra sometimes 

 dark-brown, the entire insect sometimes reddish-brown ; most nitid on 

 the prothorax ; rather convex ; head rather long, rather finely and closely 

 punctured ; a distinct, transverse, slightly bowed impression across the 

 front between the eyes ; epistoma broadly truncated in front, the suture 

 rather strongly marked and angulate at the sides ; prothorax very finely 



