( 97 ) 



h. A. caenonus caenonus. 



(? ? . Clayish lateral area of prouotum with black line or spot; dorsal 

 markings of pronotum and elytra a2ipreciably larger than in the preceding sub- 

 species, shonlder-spot of elytra rounded, entire, median spots on stripes 3 and 



4 merged together to form one ronuded spot ; clayish or rnfons portion of 

 tibiae larger than black apical portion ; apex of foretibia distinctly hnmped in 



5 on innerside ; tubercle of last abdominal sternite of S forming a low ridge 

 which is not produced into a pointed tubercle. 



A short series from Perak. 



c. A. caenonus cadarus subsp. nov. 



S ? . Legs as in the Perak race, but the hump at the apex of the foretibia less 

 developed : abdomiiuil tubercle vestigial ; dorsal spots of pronotum and elytra 

 larger, the lateral clayish or rufous area of the pronotum broken up into three 

 spots, of which the two posterior ones are connected with one another at the 

 carina ; shoulder-spot of elytra transverse, a dorsal basal spot and a transverse 

 dorsal median one as large as the lateral spots ; underside strongly variegated with 

 fuscous, the abdomen bearing a lateral row of isolated clayish or rufous spots. 



Sarawak, one pair. 



10. Acorynus mesotaenia spec. nov. 



(? ? . Close to .1. sidrirolUs Jord. (1807), narrower; frons perceptibly wider 

 in cJ ; eighth anteunal segment distinctly longer ; the markings on the elytra and 

 at the sides of the pronotum dark olivaceous and very feebly contrasting with the 

 black ground ; on the other hand a median stripe on head and pronotum greyish 

 yellow and very prominent; legs black, with the base of the tibiae slightly 

 rufescent : midtibia of c? without mucro at apex. 



One pair from Dolok-Baros, Medan, Sumatra. 



1 1 . Acorynus brevis spec. nov. 



? . Brownish black, rather thinly pubescent olivaceous bufT. llostrnm vertical, 

 broad, flat, as long as apically broad, with five parallel carinae, the median one 

 abruptly terminating in centre, the next a little longer and continued by a rugose 

 ridge to apex, the third joining the carinate edge of the anteunal groove. Frons as 

 wide as the interspace between the two lateral carinae ; sides of head and rostrum 

 and border of eyes creamy. Antenna pale rufous, segments 9 and 1 1 each one-third 

 longer than 3, 8 half the length of '.» and a little longer than Id, the latter nearly 

 twice as long as broad. 



Pronotum nearly twice as broad as long, gradually narrowed from dorsal 

 carina forward, impunctate, with transverse sulcus before middle; a widely inter- 

 rupted median line, and on each side a dot in snlcus, one laterally near apex, another 

 in front of and behind dorsal carina and one at lateral carina creamy ; dorsal carina 

 slightly curved backwards laterally and then evenly Hexed forward, the lateral 

 carina not reaching middle of side ; no longitudinal basal carina. 



Elytra short, convex, hardly at ail depressed along sutnre, each with abont a 

 dozen creamy dots, of which the one on disc behind middle is the largest, the 

 spot behind shoulder being the second largest. Pygidium truucate-rotnndate. 



7 



