174 Mr. C. O. Waterhouse on new Heteroraera. 



Heteromeka. 

 Tenel)rioni(ige. 



HoMCEOGENUS, n. gen. 



General form elongate ovate, very convex. Third joint of 

 the antennce as long as the first and second taken together ; 

 the sixth to eleventh broad, flat, and opaque. Prosternura 

 prolonged posteriorly into a deflexed acuminate ])rocess. 

 Mesosternum deeply excavated to receive the prosternal pro- 

 cess ; the sides of the excavation raised, but not angular (as 

 they are in Amenoi^his) . Epipleural fold of the elytra broad 

 at the base, gradually narrowed to near the apex, where it 

 suddenly vanishes. Legs rather long, the femora linear ; the 

 posterior tibiffi cylindrical, not channelled. Thorax trans- 

 verse, rather flat, deeply emarginate in front, all the margins 

 very narrowly incrassate, the anterior angles very prominent. 



This genus may be placed near Taraxides^ Waterh. { = Nj/c- 

 tohates sinuatus, see Ann. & Mag. Nat. Hist. 1876, xvii. 

 pp. 288, 289) ; but it diflers from that and all the allied genera 

 in the form of the thorax. The convex elytra most nearly 

 resemble those in Amenophis, Th. (Arch. Ent. ii. p. 93) ; but 

 the posterior tibise are not channelled as in that genus, and 

 the mesosternal excavation has not the sides angular. 



Homoeogenus laticorne^ n. sp. 



Nigrum, convexum, parum nitidum ; thorace sat planato, crebre 

 subtilitcr punctulato, transverse, antice profunde emarginato, an- 

 gulis anticis sat latis, obtusis, lateribus sinuatis, basi utrinque 

 sinuata ; elytris bene convexis ; thorace multo latioribus, qnin- 

 tuplo longioribus, ad apicem arcuatini acuminatis, fortiter striatis, 

 striis fere impunctatis, interstitiis dorsalibus vix convexis, parum 

 nitidis, laterahbus sat convexis opacis, corpore subtus pedibusque 

 sat nitidis. 



Long. 16 lin. 



The head is densely and very finely punctured ; the epi- 

 stoma is rather less densely so, and is lightly impressed on 

 each side. The five basal joints of the antennee are smooth 

 and shining, the following joints broad ; the seventh and 

 eighth are a little broader tlian long, the inner apical angle 

 more acute than the outer one. The striaj of the elytra at 

 first sight appear impunctate ; but on close examination they 

 are seen to be finely punctured ; the interstices are coriaceous 

 and finely and irregularly scratched. 



Hah. [Sumatra. Brit. Mus. 



