1881.] NEW AFRICAN RHYNCHOTA. 2/3 



AuRiviLLiANA LURiDA, u. sp. (Plate XXXI. figs. 6 (S , 7 2 •) 



Ocliraceous, speckled and streaked with fuscous. Antennse 

 pilose, black with the apical joint bright luteous in the male, pale 

 luteous with the apex black in the female ; first and second joints 

 subequal, or second rather longer than first, third shortest, fourth 

 the same length as second. Pronotum transversely striated with 

 fuscous, lateral margins strongly denticulated, lateral angles pro- 

 duced, with a strong tooth at apex, and moderately denticulated 

 behind. Scutellum narrowly black at base, with a central luteous 

 spot. Corium finely speckled with fuscous, and a larger spot of the 

 same colour on disk. Underside of body and legs concolorous. 

 Rostrum about reaching posterior coxse ; second and fourth joints 

 subequal in length, third shortest. 



cJ . Beneath with a luteous spot on each side at base of sixth 

 segment ; apical segment and anal appendages gibbous. 



Long. 20 miUims., abdominal expans. 9. 



2 . Much broader than <S ; apical segment and anal appendages 

 slightly raised and convex. 



Long. 23 millims., abdominal expans. 11. 



Hab. Natal, Delagoa Bay. 



Petascelisca, n. gen. 



Body oblong. Head subquadrate, and not emarginate between the 

 antenniferous tubercles. Rostrum not reaching intermediate coxse. 

 Scutellum triangular, obtusely elevated at base. Apical margin of 

 the corium sinuated. Posterior coxse widely separated ; intervening 

 space double that between intermediate coxse ; anterior coxse placed 

 somewhat closely together. Anterior and intermediate femora ob- 

 tusely noduled, and furnished beneath with two spines near apex ; 

 posterior femora much thickened, dilated, flattened, sinuated, and 

 spined beneath. Anterior tibiae moderately dilated on both sides ; 

 posterior tibiae much more strongly so, above sinuated and promi- 

 nently rounded about midway, whence to apex they are sud- 

 denly narrowed ; beneath as above, but exhibiting a strong tooth in 

 place of, and a little before, the rounded elevation above. Inter- 

 mediate tibiae simple. Abdominal margins much produced, strongly 

 sinuated and angulated towards apex. Antennae with the first three 

 joints incrassated towards apex, fourth cylindrical. Abdominal 

 spiracles rounded. 



This genus comes naturally between PetiUia and Petascelis. From 

 the first it is separated by the rounded and not widely transverse 

 abdominal spiracles, and from the second by the non-dilatation of 

 the intermediate tibiae. From both, also, Petascelisca is distinguished 

 by the non-emargination between the antenniferous tubercles of the 

 head. 



Petascelisca velutina, n. sp. (Plate XXXI. figs. 8 & 8 a, 6, 

 Above rich chocolate-brown, sparingly clothed with bright yellow 



