206 Mr. W. L. Distant on Homopfera. 



Type, N. ocellata, Walk. 



The peculiar structure of the pronotum, Avith the pointed 

 vertex and long narrow tegmina, are the salient characters 

 of this genus. 



Neosphenorhina ocellata. 



Sphenorhina ocellata, Walk. List Horn. iii. p. 693 (1851). 

 Hub. Venezuela. 



ToMASPisiNA, gen. nov. 



Vertex about as long as broad,. rounded in front, trans- 

 versely impressed at middle : ocelli somewhat near together 

 at about one- third from base; pronotum about half as long 

 as the breadth between the humeral angles, a little convexly 

 gibbous at base and deflexed towards head, anterior lateral 

 margins moderately ampliate and reflexed, very slightly 

 rounded, almost straight, much shorter than posterior lateral 

 margins, which are concavely sinuate, anterior margin 

 straightly truncate, posterior margin profoundly sinuate 

 before scutellum, centrally longitudinally carinate; scutellura 

 longer than broad, the apex acuminate; face broad, deflected 

 to an obtuse point and then truncately deflected to base of 

 clypeus ; rostrum reaching the intermediate coxse ; tegn ina 

 about two and a half times as long as broad, the whole sur- 

 face, excepting central base, very robustly and prominently 

 reticulately veined; wings ample; posterior tibiae ^^itll a 

 single long spine beyond middle. 



Type, T. frontalis. Walk. 



Tomaspisina frontalis. 



Sphenorhina frontalis, Walk. Ins. Saund., Horn. p. 89 (1858). 



Hab. Colombia. 



Neomonecphora, gen. nov. 



Allied to Makonaima ; vertex similar in structure, but the 

 central longitudinal carination restricted to the basal half, 

 and the lateral margins before eyes with their edges not 

 ridged and upwardly raised, ocelli placed a little nearer base; 

 face neither centrally ridged nor deflected to a more or less 

 acute point, but evenly rounded to clypeus ; scutellum not 

 longer than broad and discally strongly foveately depressed ; 

 rostrum scarcely passing the anterior coxae ; abdomen above 

 not centrally raised, but broad with a longitudinal incised 



