412 Mr. C. 0. Waterhouse on new Genera and 



Macrotoma vicina, n. sp. 



g . Very close to M. asperata, but with shorter antenna? 

 and elytra, and acute anterior angles to the thorax. Antennae 

 the same length as the elytra ; the basal joint closely and 

 very coarsely rugose-punctate ; the third joint as long as the 

 fourth, fifth, and one third of the sixth taken together, rather 

 strongly but not very thickly punctured, a little thicker at each 

 end than in the middle ; the following joints slender, the 

 fourth to ninth very sparingly punctured, the base and apex 

 of the tenth joint and the whole eleventh joint longitudinally 

 channelled and opaque. Eyes widely separated as in M. aspe- 

 rata. Thorax rather less convex, very coarsely rugose, the 

 anterior angles slightly prominent and dentiform ; the sides 

 scarcely crenulate, slightly bowed out a little behind the 

 middle ; the posterior angles with an acute slightly prominent 

 tooth. Elytra thickly studded with minute tubercles or 

 granules. Anterior femora rather thickly tuberculate-rugose, 

 the posterior pair not very thickly punctured, smooth above ; 

 the anterior tibia? opaque, moderately thickly beset with 

 minute granules; the posterior tibiae moderately thickly punc- 

 tured. Some few, very small, sharp tubercles maybe seen on 

 the underside of the femora. 



The elytra of the specimen above described are pale yellow ; 

 but this is, I think, evidently from immaturity. 



? . This differs from the female of M. asperata in having 

 the elytra relatively shorter ; and the tuberculation of the 

 elytra is rather more distinct. The third joint of the antenna? 

 is the same length as in the foregoing species ; but, the follow- 

 ing joints being shorter, it is nearly as long as the fourth, 

 fifth, and sixth joints taken together ; the eighth and ninth 

 joints have elongate punctures ; the tenth and eleventh joints 

 are short, shining, and longitudinally coarsely grooved; the 

 three apical joints together are scarcely as long as the third 

 joint. The sides of the thorax are furnished with short, 

 strong, acute spines. The fifth segment of the abdomen is 

 distinctly (but not deeply) emarginate in the middle. 



Hah. Antananarivo (Mr. Kingdon). 



Macrotoma Pfeifero?, n. sp. 



2 . Most, nearly resembles the female of M. asperata, but 

 is of a paler pitchy-brown colour, altogether of a more elon- 

 gate slender build, with the base of the antenna? and the 

 femora of a clear reddish brown. Antenna? slender, the same 

 length as the elytra ; the basal joint thickly and rather strongly 

 punctured, more elongate than in asperata ; the third joint 



