154 Dr. G. A. K. Marshall on Alcides, Sch'onh. 



rounded at apex ; post-humeral stripe 

 on elytra uniting broadly with the 



posterior angle of the triangle muiri, sp. n. 



9 ( 6). Peduncle of submentum subtriangular, 

 broad at apex and very strongly nar- 

 rowed behind; prothorax with an i 11— 

 defined pale stripe covering the whole 

 postocular lobe and running obliquely 

 backwards on to the disk. 

 10(11). Shoulders of elytra produced outwardly 

 into a sharp angle ; setae at apex of 

 tibia? blackish siamodelta, sp. n. 



11 (10). Shoulders of elytra obtuse ; setae at apex 



of tibiae reddish. 



12 (13). Elytra broader, broadest at the shoulders 



and narrowing gradually behind; 

 aedeagus of J with the median lobe 

 narrowed to a point at the apex ; pro- 

 thorax with an oblique blackish stripe 

 running from the eye almost to the 

 base tvuingulifer, Kirsch. 



13 (12). Elytra narrower, almost parallel-sided 



from the shoulders to beyond the 

 middle ; aedeagus of J with the me- 

 dian lobe dilated at the apex, its 

 apical margin very broad and sinuate ; 

 prothorax with the black mark behind 

 the eye confined to the non-granulate 

 apical area javanodelta, sp. n. 



14 ( 6). Elytra without any distinct triangular 



markings, the oblique discal pale 

 stripes diverging from the middle to 

 the shoulders instead of converging 

 towards the scutellum ; the internal 

 tooth on the front tibiae much nearer 

 to the base than to the apex magiciis, Pasc. 



Alcides delta, Pasc. 



So far as is known at present the true A. delta is confined 

 to the lowlands of Ceylon. 



Alcides epltippialus, sp. n. 



<$ ? . This species has the same general facies and pat- 

 tern as A. delta, as well as the simple arid connate claws, but 

 differs as follows : — The pale markings are usually covered 

 with a dark pink or pinkish-brown powdering, and the stripes 

 on the elytra are generally narrower, so that the enclosed 

 black triangle is larger ; the infra-humeral stripe is reduced 

 to one-half the length, or less ; in the V-shaped apical patch 

 the outer arm (on interval 7) is only half as long as the 



