342 



LEPTOPS BROWNI, 11. Sp. 



PI. xxxvii., figs. 123 to 126. 



S . Black. Densely clothed on the depressed parts and 

 <on the appendages with soft white scales; upper-surface in 

 addition with some larger scales scattered about; appendages 

 (especially the tibiae and tarsi) rather densely setose. 



Rostrum rather long; median carina very conspicuous, at 

 base terminating in a large inter-ocular fovea; intermediate 

 ^arinae rather narrow, somewhat dilated at base, but not sud- 

 denly terminated there; sublateral sulci narrow, open pos- 

 teriorly; aerobes deep in front, rather shallow behind, where 

 at base they are directed upwards to margin the eyes. 

 Prothorax elongate, sides but feebly dilated in middle, roughly 

 vermiculate, the middle with a conspicuous groove. Elytra 

 elongate, at base not much wider than prothorax, but fully 

 twice as wide about the middle ; with large but frequently 

 interrupted punctures; with numerous small conical or sub- 

 conical tubercles, becoming larger and more acute on and 

 about the apical slope. Presternum with a distinct subcorneal 

 tubercle on each side in front, and a semi-double one in 

 middle of base. Legs rather long, tibiae with denticulations 

 scarcely traceable through clothing. Length ( tf , Q), 21-33 

 mm. 



9 . Differs in being larger, with much wider elytra ; 

 tubercles more numerous and obtuse, and legs somewhat 

 shorter. 



Hah. — Western Australia: Cue and Lake Austin (H. W. 

 Brown). Type, I. 5387. 



One of the finest species of the genus, and taken in fair 

 numbers by Mr. Brown. In the 1906 table of the genus 

 would be associated with gravis, with which, however, it has 

 little in common. All the specimens differ from those pre- 

 viously (and, I believe, correctly) identified by me as muri- 

 catus, and which they strongly resemble in many respects, 

 in having the median carina of the rostrum almost abruptly 

 terminated, and beyond it a deep and fairly long groove (the 

 termination of the groove on each side of the carina) ; the 

 breast is always distinctly armed, and there is no Oatasarcus- 

 like tubercle or spine on each elytron, just above the middle 

 of the metasternal episternum ; they all have also a conspicu- 

 ous median channel on the pronotum : this is rather narrow 

 and parallel-sided on some specimens, but on others is some- 

 what dilated posteriorly, on the latter it is usually supplied 

 with a median carina ; it is densely clothed with snowy scales, 

 and towards each side there is another but less distinct line 

 of scales, in consequence the surface appears to be divided 

 into four longitudinal vermiculate spaces — two wide median 



