1885.] E. T. Atkinson — Notes on Indian Rliyncliota. 77 



narrow, broad at the base, gradually narrowed, three-cornered, reaching 

 the interior margin of the tegmina ; beneath, posteriorly compressly- 

 aniplified, furnished with a ridge continued throughout the entire thorax : 

 tegmina with five oblong, apical areas ; wings Avith three apical areas : 

 sides of the pro- and meso-stethium armed with a small lobe or tooth : 

 tibia3 dilated (Stal). 



1. OXYRHACHIS TARANDUS, FabriciUS. 



Membracis tarandus, Fabr., Ent. Syst. Suppt. p. 514 (1798). 



Centrotus tarandus, Fabr., Syst. Ehyng. p. 19 (1803). 



Oxyrhachis tarandus, GermsbV, in Silbermann's Rev. Ent. iii. p. 232 (1835): 

 Bnrmeister, Handb. Ent. ii. (i.) p. 133 (1835) : Amyot and Serville, Hist. Nat, Ins. 

 Hem. p. 536 (1843) : Fairmaire, A. S. E. F. (2 ser.) iv. p. 268 (1846), t. 4. f. 13 : 

 Walker, List Horn. B. M. ii. p. 503 (1851) : Stal, Hem. Afric. iv. p. 84 (1866) : Hem. 

 Fabr. ii. p. 47 (1869) : Fieber, Eev. Mag. Zool. (3 ser.) iv. p. 12 (1876). 



Body obscure, dorsum fuscous ; pronotum with two compressed 

 horns, arched, obtuse, posteriorly subulate, longer than the abdomen ; 

 tegmina hyaline, veins fuscous : wings white; feet ferruginous (Fahr.). 

 Long 7-8 ; breadth of pronotum, 3 millims. 



S . Brown- red ; ? , reddish-yellow or russet ; vertex usually russet, 

 sometimes brownish, with two small callosities prolonged to the ocelli, 

 the angles straight : head, or towards the base only, black : the prono- 

 tum with a red or russet-yellow median ridge running from the anterior 

 margin, little defined, to the space between the lateral protuberances, 

 thence defined and prolonged throughout the entire posterior process : 

 lateral protuberances of the pronotum turning outwards and backwards 

 and sometimes slightly upwards, a little compressed, varying in size, 

 tip acute or obtuse : the posterior process reaching to or extending 

 beyond the apex of the tegmina by about the fourth of its length, 

 m.ore or less recurved towards the apex, narrowly lanceolate in its pos- 

 terior half with a median keel on the sides, its lower edge finely ser- 

 rated : feet with sunken dots, ciliated and setiferous : tegmina sordid 

 hyaline, the two corneous patches at the base and the veins, russet-yel- 

 low (or fuscous-ferruginous) ; abdomen in the <? , black ; all the feet 

 and the venter in the ? , russet-yellow or reddish. Grenitalia in the S , 

 seen from above, transversely semioval ; seen from the side, trapezoidal, 

 briefly truncated behind and directed obliquely towards the base, and 

 forwards in a weak arch : anal styli yellow, projecting on the sides, 

 widened almost into a lozenge-shape, on a short narrow pedicel : anal 

 tube short, cylindrical, brown : genital plates placed one opposite the 

 other, brown, gradually contracted together behind ; their tip spatuli- 

 form, rounded and relieved : body whitish pubescent. 

 11 



