648 MISCELLANEA ENTOMOLOGICA, NO. V. 



margins broad and reflexed ; scutellum transversely triangular ; 

 elytra moderately convex, depressed along the sutural region, the 

 suture finely raised, and near it on each side a strongly marked 

 carina, which terminates abruptly at a little distance from the apex, 

 a line of small tubercles towards the foliaceous margins, which are 

 moderately broad, but expanded inwardly near the shoulders ; 

 body beneath and legs opaque rusty-brown clothed with fine 

 scattered hairs " (Pascoe). 



Length, 12 lines. 



Hah. — Cooper's Creek, Darling River. 



79. Hel^us Derbyensis, n. sp. 



Very like H. squamosus but larger, and of the same rusty 

 brown, opaque, squamous appearance. The anterior angles of 

 the thorax come in contact but do not cross, the disk is less convex 

 than in II. squamosus, and the carina is less and more uniformly 

 elevated ; the posterior angles are sharp and but lightly recurved. 

 The elytra scarcely differ from those of ff. squamosus, the suture 

 is not at all carinated, and the sculpture generally and the clothing 

 ai'e perhaps less coarse. The three last joints of the aiatennse are 

 shorter than the others but not broader. 



Long. 12 lines, lat. 7 lines. 



Hob. — Derby, King's Sound, North-west Australia. 



80. Hel^us Haagii, Dohrn. 



Stett. Ent. Zeit. 1881, p. 314. 



Like H, Peronii, but very much smaller ; entirely covered with 

 a thin, short, setiform decumbent pubescence, rugosely punc- 

 tate, and of a dull reddish-brown colour ; the anterior angles of 

 the thorax falcate and acute, but not meeting in front of the head. 



Long. 4 lines, lat 2| lines. 

 Hob. — South Australia. 



