BY H. J. CARTER. 241 



sides slightly rounded to the greatest width (behind half their 

 length), whence they narrow sharply towards apex; apical 

 declivity rather steep. Strongly striate, with eight striae on each 

 elytron, irregularly confluent towaixls apex, the first two con- 

 tinued, without meeting the others, to the apex Interstices 

 subequal and moderately convex, one or more striae on sides 

 without punctures. Epipleurce very narrow on sides, abruptly 

 expanded towards the shoulder, this widened portion with strong 

 scattered punctures. Legs, especially femora, short and unarmed, 

 tibiae nearly straight. Dimensions 11x4 (vix) mm. 



ffab.— Clarence River, N.8.W. (Mr. McGillivray). 



Types in the Macleay Museum. There are three specimens in 

 the collection, apparently one £ and two £ The £ is smaller, with 

 sides of elytra narrower and more parallel, front femora much 

 thickened towards apex, while the hind femora and tibiae are very 

 thin. The £ specimen is without a head. The small size combined 

 with its very narrow and nearly straight pronotum and margin, 

 pronotum without any basal dentation, its marked epipleural 

 formation, sufficiently differentiate this species from all its 

 congeners. 



Cardiothorax aureus, n.sp. (Plate xx., fig.l). 



Ovate, bronze-shining, antennae fuscous, body beneath darker. 



Head : epistomal ridge round and prominent, with two setifer- 

 ous punctures thereon. Front with circular prominence with 

 central impression like that of cloven hoof. Antennae long and 

 moderately slender (7 mm.). Third joint little longer than fourth,, 

 eleventh little larger than tenth. Joints four to ten equal. 

 Prothorax cordate (4x5 mm.), widest at middle. Disc slightly 

 convex. Lateral foliation reflexed, with well defined margins on 

 sides, narrower at base and apex. Anterior angles prominent, 

 raised and subrectangular. Posterior angles sharply dentate, 

 teeth pointing outwards. Much narrower at base (2'2 mm.) than 

 at apex between angles (3 mm.). Sides rounded and widening to 

 about half their length, abruptly narrowed near posterior tooth 

 without sinuation, lateral foliation suddenly narrowing on this 

 hinder curve and separated from disc by deep curved furrow. 

 16 



