106 Mr. C. 0. Waterhouse on some Buprestidse. 



Elytra at the base not quite as broad as the broadest part of 

 the thorax, about three times as long as the thorax, with a 

 very sligiit transverse impression at tlie base, without other 

 impressions ; the punctuation irreguhar, fine but distinct, the 

 punctures moderately separated from each other. Underside 

 sculptured as above. Front and intermediate coxae rather 

 widely separated. The prosternal process broad, flat, parallel, 

 truncate posteriorly, and fitting close to the metasternura, the 

 process bordered on each side by a distinct but fine line, the 

 lines diverging slightly as they approach the anterior margin 

 of the prosternum ; with a hw large shallow punctures. Ab- 

 domen with no division between the first and second segments, 

 together about half the length of the abdomen, the third and 

 fourth short, the fifth semicircular. Tarsi short, the first 

 joint scarcely longer than the second. Claws dilated at the 

 base, the dilatation appearing in some positions like a large 

 triangular tooth. 



From the foregoing description it will be seen that this 

 species differs from the typical species of Mastogenius in 

 having a groove in the sternum for a portion of the antennae, 

 and in having the basal joint of the tarsi short &c. 



Mastogenius fel'ix^ sp. n. 



Oblongus, subparallelus, a?neus, convexus, nitidus ; capita leviter 

 convexo, crebre evidenter punctate, medio vix suleato ; thorace 

 clytris latiori, bene convexo, subtilitor crebre punctulato, lateribus 

 rotundatis aiiguste marginatis ; elytris subparallelis, ad apicem 

 arcuatim angustatis, crebre subtiliter punctulatis, sub humeris 

 leviter compressis, basi trausversim irapressis. 



Long. 2\ miU. 



Hah. Transvaal. 



The prosternum of this species has scarcely any trace of the 

 groove mentioned in the foregoing species ; the fine lines 

 bordering it are rather more parallel, the surface appearing 

 smooth, rather strongly and rather closely punctured (the 

 punctures separated from each other by about the diameter of 

 a puncture). Abdomen with the punctures not quite so close 

 as on the prosternum, round, rather finer, each bearing a fine 

 whitish hair ; the apical segment emarginate in the middle. 

 Antennai rather slender, the two basal joints moderately large, 

 the third slender, the fourth an isosceles triangle, a little 

 longer than the third, the fifth about the same length, but 

 broader at the apex, the following a little shorter. Tarsi with 

 the basal joint about as long as the two following taken 

 together. 



