DE. F. B. WHITE OK NEW HEMIPTEBA. 485 



Hab. Brasiliam borealem. (Lower course of the Eio Jurua, 

 Nov. 12, 1874, J. W. H. Trail.) 



Allied to Lethceus pallidinervis, Stal, but, besides the darker 

 colour, differs in having the anterior femora, which in that species 

 are unarmed, furnished with four small teeth towards the apex. 



Akadidje. 

 Helenus, n. g. 

 Corpus oblongum, retrorsum sensim dilatatum, supra cum anteu- 

 nis pedibusque valde villosum et setosum. Caput processu antico 

 paullo producto, inerme, pone oculos sensim angustatum. An- 

 tennce articulo prime maximam ad partem apicem capitis supe- 

 rante, articulis prime tertioque subsequilongis, articulo quarto 

 quam dimidium tertii breviore. Thorax transversus, paullo ante 

 medium transverse impressus,marginibuslateralibusemarginatis, 

 margine basali ante scutellum sinuate. Scutellum triangulare, 

 transversim rugosum, longitrorsus carinatum, marginibus ele- 

 vatis. Hemelytra apicem abdominis fere attingentia, parte cori- 

 acea quam scutellum longiore, membrana venosa venis anastomo- 

 santibus. Pedes mediocres. Venter convexiusculus ; spiraculis 

 a marginibus lateralibus remotis, spiraculis segmenti quinti ad 

 margines illos appropinquatis. Sternum et venter sulco longi- 

 tudinali interrupto instructa. 



In facies and structure closely allied to Hesus, Stal, but differ- 

 ing in, amongst other points, the shaggy pubescence, structure of 

 the membrane, and the interruptedly sulcate sternum and venter, 

 which latter character brings it into relations with the division 

 Aradina. Name in honour of Professor James WiUiam Helenus 

 Trail. 



7. Helenus hesiformis, n, sp. Ferrugineus, villositate ochraceo- 

 brunnea vestitus ; capite, antennarum articulo basali, femoribus, an- 

 nulo apicem versus tibiarum, et segmentis genitalibus obscurioribus. 

 <? long. 9, lat. pone medium 4J millim. 



Sah. Brasiliam borealem. (Manaos, 1874, J. W. JS. Trail.) 



TiNGITIDJE. 



8. AcANTHOCHEiLA ABDUCTA, n. sp. Oblongo-ovata, nigra, opaca ; 

 hemelytrorum area eostali necnon partibus totis pone abdomen fere 

 vitreis, nigro-venosis ; area eostali fascia transversa picea abdominis 

 apicem versus notata, et illicmulto subtiliuset irregulariter reticulata. 

 $ long. 5, lat. 3 millim. 



