OXYRIIACIIIS. 



Subfamily I. MEMBRACIiNF^. 



Membracidfi, Stdl, Hem. Afric. iv, p. 83 (18GG) ; Fich. Rev. May. 



Zool. (3) iii, p. 332 (1875). 

 Centrotida (part), Sm, Ofv. Vet.-Ak. Fork. 1869, p. 280. 

 Centrotiua (part), Atkins. J. A. S. Bene/, liv, p. 76 (1885). 

 Membracina?, Foivler, Biol, Centr.-Ajner., R/tynch. Hum. ii, p. 3 



(1894). 



The two genera found in the Indian fauna which are placed in 

 this subfamily are of rather doubtful position, 8o sound and 

 experienced a taxonomist as Still placed them originally in the 

 above subfamily (18GG); in 1869 he transferred them to the 

 Centrotince, and again in the same year (Hem. Fabr. ii, p. 47) 

 he adhered to his earlier decision. In general appearance they 

 strongly resemble the Centrotino', but tbey differ from all the 

 genera there included by the absent or obsolete scutellum, entirely 

 concealed by the prouotum. 



Division OXYRHACHlSAIilA. 



In this division the posterior pronotal process is long and 

 narrow, broad at base, and reaching or passing the posterior angle 

 of the interior margin of thetegmiua; the tibiae are dilated ; the 

 sides of the pro- and mesosterna are armed with a small lobe 

 or tooth. 



Synojysis of Genera. 



A. Posterior prouotal process compressed and 

 ampliated beneath on its apical area ; 

 wings with three apical areas. 

 a. Pronotum with the lateral angles more or 



less produced Oxyhhachis, p. 3. 



/j. Prouotum with the lateral auj^les not 



produced Oxyrhachidia, p. 8. 



ii. Posterior prouotal process not compressed 

 and ampliated beneath ; wings with four 

 apical areas Xiphistes, p. 8. 



Genus OXYRHACHIS. 



Oxvrhachis, Germ, in Silh. Rev. Ent. iii, p. 232 (1835) ; Fninn. 



Ann. Soc. Ent. Fr. 1846, p. 267 ; IStal, Hem. Afr. iv, p. 84 



(1866) ; Fieb. Rev. May. Zool. (3) iii, p. 333 (1875) ; Atkins. 



J. A. S. Beny. liv, p. 76 (1885) ; Melich. Hon. Faun. Ceylon, 



p. 108 (1903). 

 Polocentrus, Buckt. Mojioyr. Memhrac. p. 253 (1903). 

 Ouranorthus, Buckt. Trans. Linn. Soc. Bond, ix, p. 333 (1905). 



Type, 0. turandns, Fabr. 



