EiiArnuMA. 271 



Genus KHAPHUMA. 



Rhapliuma, Pascoe, Trans. Ent. Soc. (2) iv, p. 240 (18o8) ; Chevr. 



Mem. Soc. R. Sci. dc Licye, xviii, p. 275 (1863) ; Lacord. Gen. 



Coleopt. ix, p. 72 (1809). 

 Rapluiiua, Thorns. Essai Classif. Ceramh. p. 221 (18G1). 

 Arcyphorus, Chew. Mem. Soc. JR. Sci. de Liege, xviii, p. 287 (1863). 



Type, 11. quadricolor, Lap. & Gory, a species from the Philippine 

 Islands. 



Eanr/e. Oriental Eegion. 



More or less narrow and elongate in form. Head with the face 

 subvertical, generally longer than broad, slightly widened below ; 

 the antennal supports raised on the inner side, formed into a ridge, 

 concave in the middle, between the antennae. Antennae sub- 

 appro.ximate at the base, subequal in length to the body in the c? , 

 sometimes a little longer, sometimes shorter ; always shorter than 

 the body in the $ ; unarmed ; third joint distinctly longer than 

 the first. Prothorax oblong-ovate or subcylindrical, longer than 

 broad. Elytra long, very slightly narrowed posteriorly, truncate 

 at apex, the lateral margins sinuate in the middle in some of the 

 forms, nearly straight in others. Legs long and generally rather 

 slender, the hind femora extend past the apex of the elytra in 

 the d" . First joint of the hind tarsi as long at least as the 

 remaining joints united. The episterna of the metathorax parallel- 

 sided in the subgenus Arcijpliorus and the forms most nearly allied 

 to it ; in other cases they appear narrowed in front due to the 

 widening downwards of the elytra near the base. Arcyphorus is 

 distinguished also by the middle femora, which are carinate 

 in front. 



I. Lateral margins of elytra nearly straight. 

 A. Middle femora carinate in front (s.g. Akcyphoeus). 



318. Rhaphuma diana, sp. n. 



Black, densely covered with yellow pubescence, ornately marked 

 above with black spots and bands ; prothorax witli two short, very 

 closely approximated, slightly curved, longitudinal black bands on 

 the disc and a rounded black spot on each side ; the discal bands 

 densely punctate, united in front for about a third of their length ; 

 each elytron with three longitudinal bands in front — a short one 

 on the disc transversely united behind to its fellow, a longer one 

 extending back from the shoulder, and a marginal band which 

 extends from the base and joins a transverse spot placed just behind 

 the middle ; from the inner end of this spot a fourth longitudinal 

 band extends forwards along the disc, it becomes narrower in front 

 and ends a little behind the posterior end of the anterior discal 

 band ; two lai'ge marginal spots follow behind — one placed at 

 nearly one-third from the apex, the other close to the apex ; 



