76 E. T. Atkinson — Notes on Indian Rhynchota. [Ko. 2, 



IX. — Notes on Indian Rhynchota, No. 3. — By E. T. Atkinson, B, A. 

 [Received Jane 15th ; — Read July 1st, 1885,] 



[The notes are taken as far as possible from the original descrip- 

 tions, most of which are practically unprocarable by observers in India, 

 or from Stal, Signoret, Butler, or Distant &c. where these authors have 

 redescribed a species : the measurements of specimens not in the Indian 

 Museum have been converted into millimetres from the recorded mea- 

 surements of the several authors.] 



The insects belonging to this section have been so little worked 

 in India that the collector may feel sure of a rich harvest of new species. 

 At the same time, we may take warning from the confusion in the 

 results of the investigations into the European forms how very necessary- 

 it is, from the similarity in appearance and small size of the great 

 majority of the species, to use the microscope more freely than has 

 apparently hitherto been the practice in ascertaining the generic charac- 

 ters. We must wait some time before we can usefully attempt to 

 do more than collect, compare, and fix the locality for the new forms of 

 MemhracidcB and Jassidoe which exist in such profusion in this country. 

 In the meantime, these notes summarising what has been done in, as near 

 as possible, the words of the authors, is a contribution to the work. 



Family' Membracid^, Stal. 

 Subfam. Memhracida, Stal, Hem. Afric. iv. p. 83 (1866) : Fieber, Rev. Mag. 

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



Subfamily Centeotina, Stal. 

 Centrotida, Stal, Hem. Afric. iv. p. 83 : Ofvers, K. V.-A. Forh. p. 280 ^(1869) : 

 Centrotina, ibid. p. 727 (1870). 



Scutellum distinct, produced backwards behind the metanotum, 

 very often sinuated at the apex and furnished with acute apical angles. 

 The scutellum is wanting in Oxyrhachis, which in Hem. Afric. iv. p. 84* 

 (1866) is placed by Stal in his subfamily Memhracida (Membracina) ^ 

 and in Ofvers. Kong. Yet. Aka. Forh. p. 280 (1869) in his subfamily 

 Centrotida (Centrotina) : in Hem. Fabr. ii. p. 47 (1869), it is again 

 transferred to Memhracina. 



Genus Oxtehachis, Germar. 

 Silbermann's Rev. Ent. iii. p. 232 (1835) : Fairmaire, A. S. E. F. (2 ser.) iv. p. 

 267 (1846) ; Stal, Hem. Afric. iv. p. 84 (1866) ; Ofvers. K. V.-A. Forh. p. 280 (1869) ; 

 Fieber, Rev. Mag. Zool. (3 ser.) iii. p. 333 (1875). 



Head perpendicular, frons a little elevated : thorax cornuted 

 above the lateral angles, horns three-cornered ; posterior process long, 



