312 Mr. Frederick Bates on 



Sub.-Fam. TENEBRIONIN^. 



Gen. GoNiADEKA, Perty, Del. Anim. Artie. Brasil^ p. 62 ; 

 Lacord. Genera^ v. p. 391. 



Goniaclera interrupta, n. sp. (PI. XV. fig. 3). 



Length 5§ lines: — entirely dull bluish black; legs, 

 antennee, and undersurface deep shining black ; labial 

 palpi bright red^ the maxillary and labrum dark casta- 

 neous : this latter punctured, and with a few longish 

 hairs ; epistoma also with a few longish hairs, very short, 

 but little thickened, broadly emarginate in front, and — 

 together with the head — very coarsely and irregularly 

 rugose-punctate ; the impression separating it from the 

 front well marked, broad, smooth in the middle; head 

 short, transverse, the space behind the eyes much abbre- 

 viated, so that the hind angle of the eye nearly touches 

 the furrow separating the head from the neck : this latter 

 cellulose-punctate above, more strongly so on the middle 

 than on the sides ; antennce rather short, moderately 

 stout, and setulose, the terminal joints closely punctured, 

 and — especially the last — pubescent ; joint 2 very short 

 and very broad ; 3 longer than the following, obconic ; 

 4-10 sub-cylindrical, becoming very gradually broader; 

 11 large, robust, ovoid; ]n'ot]iorax hvoader than long, but 

 little convex ; the surface rough with irregular, sub- 

 conical, polished tubercles, and having a few short, scat- 

 tered, squamose hairs ; anterior margin squarely tnincate 

 in the middle : the dilated sides produced in front, and ^ 

 forming large prominent angles, reflexed and sub-acute ; 

 sides strongly rounded a little before the middle, thence 

 contracted in a curve to the base, which has its margin 

 squarely truncate in the middle, its angles broadly, obli- 

 quely, and triangularly excised and pointed ; * the at- 

 tenuated lateral margins rather broad, especially from the 

 middle to the front, somewhat reflexed, their edges 

 tuberculate ; scutellum large, gradually arched behind, 

 rugose-punctate; elytra rather short, convex, rather 

 strongly declivous behind, broader than the prothorax 

 at the base, which is slightly but broadly emarginate ; 



* In some species of Qoniadera the base of the thorax is thus formed, 

 in others the hind angles are obliquely truncate. 



