456 A SECOND NOTE ON THE CARENIDES, 



EUKYSCAPHUS ATRATUS, 11. Sp. 



5. Oblong-oval, convex, smooth, black ; prothorax subcordate ; 

 elytra impunctate, humeral angles thick, and forming a prominent 

 upturned projection. 



Head transverse (5 x 8-5 mm.), smooth (excepting for a few 

 minute scratches); frontal sulci not connected behind, parallel 

 forward, curving obtusely out in front in a linear course ; eyes 

 not prominent ; lower margin of orbit projecting forward in a 

 short obtuse prominence ; two supra-orbital punctures on each 

 side. Antennae subfiliform, thick ; second joint very short ; 

 apical joint obtuse. Prothorax subcordate (7x11 mm.), convex ; 

 sides lightly rounded before posterior angles, gently and obliquely 

 narrowed behind them, lightly sinuate between posterior angles 

 and middle of base ; posterior angles rounded off ; base rounded, 

 widely and strongly produced backwards ; anterior angles rounded, 

 very lightly advanced ; anterior margin sinuate ; border thick, 

 reflexed, hardly more prominent at posterior angles, narrow with- 

 out any median sinuosity on base ; a slight triangular projection 

 at the sinuosity on each side of base ; marginal channel narrow ; 

 median line lightly impressed ; a lightly-marked transverse 

 impression across the base ; two marginal punctures, the anterior 

 rather nearer the anterior angles than usual in the genus. Elytra 

 impunctate, ovate (16 x 12 mm.), widest a little before middle, 

 lightly rounded on sides, a little narrowed to base, greatly narrowed 

 to apex, convex ; base almost truncate ; shoulders prominent ; the 

 border forming a thick obtuse projection at the humeral angles ; 

 margin very narrow on sides and apex, wider, but not flattened, 

 behind shoulders; border reflexed, not extending past humeral 

 anc'les ; a row of small punctures on base of each elytron ; a row 

 of fine punctures along lateral margins, these more closely placed 

 towards base ; suture not forming an impression. Prosternum 

 deeply channelled between coxse. Anterior tibiae bidentate, three 

 fine external teeth above the two large ones. 



Length 31-33, breadth 12-13 mm. 



jjah. — Bourketown district, Queensland. 



