371 



muzzle, sides in front of eyes, base, and under-surface are 

 glabrous, or almost so ; the prothorax is widely glabrous 

 along middle, the pubescence on each side of the glabrous 

 space appearing as a narrow white line; between each of 

 these and the side the pubescence is stramineous, then there 

 is another white line, narrow at the apex and wide at the 

 base; the scutellum and the suture for a slight distance 

 beyond it are glabrous, then the suture for a slight distance is 

 clothed with white pubescence, but from about the basal 

 third is narrowly dark-brown and glabrous (although not 

 conspicuously so), the apex of each elytron (for a space about 

 two-thirds as long as its width) is highly polished and much 

 darker (the spines are black) ; on the under-surfacs the 

 clothing: is white or whitish. 



Uracanthus dubitjs, n. sp. 

 PL xxxii., fig. 6. 



£ . Piceous-brown, most of elytra somewhat paler. 

 Densely clothed with somewhat ashen short pubescence, pro- 

 thorax with two feeble whitish lines, middle femora with very 

 dense suberect pubescence filling a narrow groove along 

 under-surface, hind femora with similar but less dense 

 clothing. 



Read with median line deep and well defined, but 

 abruptly terminated near base, clypeus with small dense 

 partially-concealed punctures, its suture deep and sub- 

 triangular. Antennae extending to about one-fifth from 

 apex of elytra, fourth to tenth joints produced on one side at 

 apex, tenth slightly shorter than ninth and about two-thirds 

 the length of eleventh. Prothorax longer than wide, strongly 

 transversely multi-corrugate, a series of small nodes across 

 middle. Elytra moderately wide at base, parallel-sided from 

 near shoulders almost to apex, each acutely bispinose at apex, 

 with very feebly indicated elevated lines ; basal third with 

 dense small punctures, becoming even smaller posteriorly. 

 Length ( d , 9), 34-36 mm. 



9 . Differs in being more robust, antennae distinctly 

 shorter, and femora neither grooved nor specially clothed. 



Hab. — Western Australia: Eucla (C. French); South 

 Australia: Denial Bay (Dr. Abbott), Murat Bay (E. A. 

 King), Fowler Bay (Blackburn's Collection, from Professor 

 Tate). Type, I. 5482. 



A large dark species, which possibly should have been 

 treated as one of the varieties of triangularis, but with sub- 

 humeral markings moderately clothed instead of conspicuously 

 glabrous; it is also considerably darker than that species, some- 

 what more robust, and the smallest of the six specimens the size 



