i:)4 Dr. G. A. K. Marsliall u7i Alcides, Schonh. 



rounded at npox ; post-lmmernl stripe 

 on elytra uuiting broadly with the 



posterior angle of the triangle mtiiri, sp. n. 



9 ( 6). Peduncle of submentum subtriangular, 

 broad at apex and very strongly nar- 

 rowed behind; prothorax with an ill- 

 detined 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 ; setfe at apex of 

 tibia; blackish siamodelta, sp. n. 



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



of tibioe 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 triangtilifer, Kirsch. 



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



from the shoulders to beyond the 

 middle ; sedeagus of J with the me- 

 dian lobe dilated at the apex, its 

 apical margin verybroad and sinuate; 

 prothorax with the black mark behind 

 the eye confined to the non-granulate 

 apical area javanodelta, sp. n. 



14 ( 5). 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 mar/icus, Paso. 



Alcides delta, Pasc. 



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

 to the lowlands of Ceylon. 



Alcides ephippiatus, sp. n. 



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

 tern as A. delta, as well as the simple and 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 aie 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 





