293 



NOTES ON SOME SINHALESE RHYNCHOTA. 

 By G. W. Kirkaldy, F.E.S. 



Fain. Tetigoniidje [=Jassid^, auctt.J . 

 y Nirvana, gen. no v. 



Belonging to subfam. Jassinse. Head porrect, plane, nearly 

 twice so long as pronotum, the lateral margins parallel so far as 

 ocelli, subsequently very gently convergent, apex subangular. 

 Eyes longer than wide, produced basally over the anterior 

 margin of the pronotum, which is somewhat wider than the base 

 of the vertex ; ocelli small, indistinct, situated on the lateral 

 margins of the vertex, at about half their length from the base. 

 Posterior margin of head concave ; frons slightly concave. 

 Antennae simple, very long. ^ Scutellum slightly shorter than 

 pronotum. Anterior coxte fre^ Type iV. pseudonwiatos, Kirkaldy. 



The only example of the typical (and only) species that I 

 have seen is macropterous ; the tegmina and wings are longer 

 than the abdomen, but the neuration is very feeble. The claval 

 suture is well marked, though it ends abruptly just before it 

 should reach the lateral margin of the tegmen ; there are no 

 other tegminal nervures except three indistinct longitudinal on 

 the membrane (which is not sutured off from the rest of the 

 tegmen). Nirvana may be placed provisionally near the American 

 genus Spangbergiella, Signoret. 



^ '^ N. PSEUDOMMATOS, Sp. n. 



Hyaline ; eyes yellowish brown, pronotum and scutellum tinged 

 with stramineous. In the middle line of the vertex, close to the 

 anterior margin, is a large round blackish brown spot, from which 

 proceeds a thin median line of the same colour, terminating at 

 the base (" apex " aiictt.) of scutellum; along the lateral margins 

 of the head (except apically) is a line of the same colour, con- 

 tinued (in the same straight line) on the pronotum. Tegmina 

 hyaline, sparingly punctured, the punctures scantily piliferous ; 

 membrane pale salmon-coloured, a large round submedian spot 

 and the apical margin blackish brown ; three faint fasciae on the 

 corium of the same colour. Ventral surface whitish ; apex of 

 posterior tibiae and first segment of posterior tarsi blackish. 



Length 4|- mill. Pundaluoya (July, 1898, E. E. Green). 



I have only one specimen, unfortunately, of this pretty but 

 fragile little Tetigoniid, and have therefore not risked a detailed 

 examination of the genitalia, &c., hoping to receive later a series. 

 A coloured representation (as also of the other new species) will 

 appear in another place ; in the meantime the characteristic 

 form — not unlike that of Hecalas, Stal — the feebly developed 

 " nervural " system and the remarkable colouring, hyaline and 



