1909.] W. L. Distant : Rhynclwta Malayana. 169 



Genus Alum a ^ gen, no v. 



Vertex about as long as breadth between eyes, the lateral 

 margins strongly ridged and a little angulate on each side at their 

 apices ; face long, much longer than clypeus, the base produced 

 beyond eyes, gradually widened towards clypeus before which it 

 is again bent inwardly, tricarinate, the lateral carinations very 

 robust ; clypeus centrally carinate ; rostrum passing the interme- 

 diate coxae; anterior and intermediate tibiae dilated, posterior 

 tibiae not dilated and armed with two strong spines beyond 

 middle, the apical spines well developed ; basal joint of posterior 

 tarsi long and strongh' thickened ; tegmina about three times as 

 long as broad, the costal area with oblique transverse veins, veins 

 on remaining surface longitudinal, on apical area dense and 

 numerous, with numerous short transverse veins, and a distinct 

 subapical transverse series defining a short subapical area, costal 

 margin moderately sinuate, apex slightly rounded, inner margin 

 a little dilated beyond claval apex ; pronotum short and broad, 

 centrally tricarinate, its apex moderately produced between eyes, 

 its lateral angles subacute ; mesonotum broader than long, tri- 

 carinate, the carinations continuous with those on pronotum. 



Type A. ocellata, Dist. 



The shape and venation of the tegmina as well as the structure 

 of the face will distinguish this genus from Makota, to which it is 

 allied. 



Aluma ocellata, sp. nov. (PI. xi, figs. 3, 3a.) 



Body above and tegmina black ; body beneath and legs 

 piceous, the anterior and intermediate tibiae above obscurely 

 banded with black ; tegmina with a large subapical ocellate spot, 

 black, margined with reddish brown and with a small white 

 pupillate spot situate nearer its hinder extremity, a few scattered 

 obscure greyish spots near middle of costal area ; tarsi and disk of 

 sternum brownish ochraceous ; structural characters as in generic 

 diagnosis. 



Long. incl. tegm. 14 mm. 



Hab. — Borneo ; Kuching (Hewitt). 



Genus Sarebasa, gen. nov. 



Head a little longer than breadth between eyes, a bent 

 transverse impression between the eyes, in front of which are two 

 prominent ridges gradually directed outwardly, the lateral margins 

 in front of eyes raised and acute, their apices, with those of the 

 two central ridges, having the appearance of four short spines in 

 transverse series ; posteriorly the head is a little narrowed between 

 the eyes, widened anteriorly and apically subtruncate ; face with 

 its base projecting above the eyes where it is narrowest, and then 

 gradually widened to a little before clypeus to which it is again 

 inwardly directed, tricarinate, the central carination straight, the 



