Dll. F. B. WUITE ON NEW IIEMIPTERA. 



485 



E.ab. Brasiliam borealem. (Lower course of the Rio Jurua, 

 IS^ov. 12, 1874, J. W. H. Trail) 



Allied to Lethceus pallidinervis, St&l, 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. 



Aradidje. 

 Helenus, n. g. 



Corpus oblongum, retrorsum sensim dilatatum, supra cum anten- 

 nis pedibusque valde villosum et setosum. Caput processu antico 

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

 tenncB articulo primo maximam ad partem apicem capitis supe- 

 rante, articulis primo tertioque subsequilongis, articulo quarto 

 quam dimidium tertii breviore. Tliorax transversus, paullo ante 

 medium transverse impressus, margin ibuslateralibus emarginatis, 

 margine basali ante scutellum sinuato, 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 William Helenus 

 Trail. 



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

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

 nulo apicem versus tibiarum, et segmentis geuitalibus obscurioribus. 

 3 long. 9, lat. pone medium A\ millim. 



Hah. Brasiliam borealem, (Manaos, 1874, J. W. H. Trail.) 



TiNGITIDiE. 



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

 hemelytrorum area costali necnon partibus totis pone abdomen fere 

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

 apicem versus notata, et illic multo subtilius et irregulariter reticulata. 

 5 long. 5, lat. 3 millim. 



