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Show 1878.] HEMIPTERA OF ST. HELENA. 473 et abdomine subtus brunneo-nigris; scutelli dimidio apicali tes-taceo- flavido ; oculis ocellisque brunneis. S 2 • Long. 72-9, lat. 2|-3 m. m. Hab. in editoribus insulae, ad "Diana's Peak "et" Halley's Mount." In addition to the differences of coloration, this species may be distinguished from the last by the internal sector of the elytra having three cells exteriorly between the base of the elytron and the apex of the clavus instead of two, as well as by the somewhat smaller stature. NEHELA, gen. nov. Corpus cylindricum, elongatum. Caput obtusissimum, latum, thoraci eequilatum, desuper visum brevissimum angulato-arcuatum; vertice magnam ad partem declivi; facie dilatata, subtriangulari, apice producto, lateribus ante oculos late sinuatis, dein leviter rotundatis ; plica supraantennali valde obliqua, oculos fere attingente. Ocelli inter oculos in parte antrorsum vergente verticis positi, ab oculis et inter se fere cequidistantes. Clypeus distincte productus, sulco inter basin et frontis apicem haud instructus. Pronotum transversum, sat longum, antice subangulato-rotundatum. Scutellum mediocre, latins quam longius. Elytra apicem abdominis superantia, pone clavum anguste marginata. Elytrorum alarumque vence ut in Stonasla formatee. Tibiee posticee spinosissimce. Genus Stonaslce valde affine, forma faciei, situ ocellorum, et clypeo distinctius producto divergens. 24. NEHELA VULTURINA, sp. n. (Plate XXXI. fig. 6.) N. atra, opaca ; capitis vertice (maculis parvis 2 ad ocellos et 4 ad marginem posticum exceptis), oculis, macula triangulari in medio frontis, antennis et lateribus, pronoti marginibus lateralibus interne angulatis, margine postico et maculis 2 parvis in disco (interdum obsoletis), scutelli macula utrinque ad marginem ante apicem, elytrorum (clavo excepto) lineolis longitudinalibus latis inter venas, necnon marginibus antico interioreque corii, pedibus anticis intermediisque (unguiculis exceptis), coxis posticis, femoribus ad apicem, tibiarum posticarum basi spinisque et articulis primis tarsorum posticorum testaceo-brunneis. o* 2 • Long. 7-7i, lat. 2-2| m. m. Hab. in excelsioribusinsulae, ad " Diana's Peak" et "High Peak." Frequently the veins of the clavus are more or less brown; and more rarely the whole of the elytra is entirely black. ARGATERMA, gen. nov. Corpus oblongum, paullo depressum. Caput breve, pronoto paullo breviore et latiore, margine antico acuto; vertice inter oculos quam singulusocuius duplo latiore, horizontali, concavopreesertim antice, margine antico arcuato, acuto, inter ocellos angustissime refiexo. Ocelli in margine antico prope oculos positi. Fades convexa, dilatata, subquadrata, apice obtusissime rotundato, lateribus ante oculos sinuatis, dein leviter rotundatis ; suturafrontali ocellos attingente. Pronotum transversum, antice arcuatum, inter oculos PROC. ZOOL. Soc-1878, No. XXXI. 31 |
