BY THOMAS G. SLOANE. 349 



inner side; sinus shallow; a very wide, prominent, roundly obtuse, 

 median process in sinus. Antennae stout; second joint longer 

 than third; joints 4-11 moniliform, compressed. Prothorax 

 convex, transverse (2-8 x 3*5 mm.;, widest just before posterior 

 angles, greatly narrowed to apex (2-1 mm.); sides oblique; apex 

 emarginate; anterior angles widely obtuse, subprominent; pos- 

 terior angles obtuse but marked ; basal curve short ; border 

 narrow, entire on basal curve; anterior line well marked near 

 anterior margin; median line distinct. Elytra short, oval 

 (6 X 4mm.), very convex, deeply but roundly declivous to peduncle; 

 shoulders quite rounded off; striae strongly impressed, finely 

 punctate at bottom, seventh as strongly impressed as otliers and 

 continuous to apex; interstices convex, first with a very short 

 striole at base, third 4-punctate, eighth entire, wide and convex 

 on apical curve; lateral channel closely catenulate (with punctate 

 tubercles) at bottom. Presternum with intercoxal part wide, 

 shortly channelled between coxae; posterior declivity transversely 

 impressed, but not sulcate. Tarsi short, anterior with first joint 

 as long as four succeeding joints together; intermediate tibiae 

 stout, incrassate, outer edge denticulate, external spur stout, 

 long, placed a little above apex, another short spur a little above 

 it. Length 11, breadth 4 mm. 



Hah. — Q.: Coen (Colls. Hacker and Sloane). 



A very distinct species without any close relationship to any 

 other Australian species. Its short broad form, with short oval 

 elytra (not truncate at base) distinguish it from all our species. 

 It is one of a few species with short metasternal episterna; 

 probably it may be placed near C. nyctosy hides Putz., which it 

 resembles generally in form of head, prothorax, "and peduncle, 

 but it is very distinct by its smaller metasternum with shorter 

 episterna; elytra not truncate on base, eighth interstice distinct 

 from seventh and hardly reduced in width near apex. It has the 

 elytra soldered together and the underwings reduced to a mere 

 narrow membrane, characters which seem to differentiate it 

 from all other species of the genus. Mr. Henr}'' Hacker 

 informed me that he obtained only three specimens one morning 



