1886.] REV. H. S. GORHAM ON NEW COLEOPTERA. 157 



with a marginal line round the entire edge uniting with the central 

 channel in front ; front margin deeply bisinuate ; sides hardly so much 

 rounded in front as in S. chrysomeloides. Elytra longer than in that 

 species, thickly and distinctly punctured, hardly any trace of sulcation 

 or striation ; shoulders with a callus well raised, ending in a deep red 

 spot, another spot near the scutellum, and a third between these two ; 

 posteriorly are two small oblong spots (united in the specimen 

 described) near the suture about one third from the apex, and another 

 between these and the margin. There is a fine sutural stria for the 

 whole length of the elytra, and the margin is narrowly reflexed. Legs 

 and underside shining black ; femora punctate, but more finely than in 

 S. chrysomeloides; anterior pair in the male compressed at the tip 

 and with a very small fine calcar above the spatulate compression. 

 The tubercle on the apical ventral segment is squarish and impressed 

 on its top so as to seem faintly bidentate. 



A single male specimen is all that Mr. Lewis secured of this 

 species. 



Cymones. 



Characteres plerumque ut in genere Encymon ; differt mesosterno 



hand transverso, prothoracis basi medio vix marginato, suico 



transversa nulla, antennarum clava elongata, laxe articulata, 



articulis nana et decima vix latioribus, tnaris tibiarum anticarum 



dente lato. 



I have no doubt that the species for which I propose this new 



genus is the Madagascar representative of Encymon, with which it 



is associated in the form of the mandibles. It has, however, a 



different facies, principally owing to the form of the pronotum, 



which is more convex, with its margins even and scarcely at all 



reflexed. The longitudinal basal sulci are present, but the transverse 



one is quite obsolete. The mode of toothing of the front tibia of 



the male is, moreover, quite different to that of Encymon ; in the 



only species of that genus in which I have seen it take place, and 



which is figured by me (Endom. Recitati, tab. f. 10), the tooth is 



small and close to the apex ; here it is wide and strong and near the 



middle of the tibia. 



Ic Cymones sharpi. (Plate XVIL fig. 4.) 



Piceus ; prothorace elytrarumque apicibus JIavis, illo guttis duabus 



magnis oblangis, punctisque tribus parvis nigris, capite femori- 



busque saturutius nigro-piceis ; trochanteribus, femoribus basi, 



tibiis tarsisque ferruginea-flavis. Long. 9 millim. S . 



Mas. Tibiis anticis dente basi latissimo, apice acuta infra medium, 



tibiis intermediis et posticis apice leviter incurvaiis. 

 Hab. Madagascar, Belsileo (C'oivan). 



Head black, mouth and palpi testaceous, epistoma with a 

 few indistinct punctures, crown smooth, antennal orbits raised. 

 Antennae piceous, rufo-piceous at the base ; the proportion of the joints 

 as in Encymon till the ninth, which with the tenth and apical joints 

 are elongate, only rather longer and more widened at their tips than 



