1905. | HEMIPTERA OF THE SUBFAMILY HALYINA. 151 
head, pronotum, and scutellum seem to be differently sculptured, 
and there is no annulation to the femora. 
LEVENNA, gen. nov. 
Caput longitudine latius, leviter convexum, apice rotundatum, 
marginibus anguste refleais, ante oculos magnos globosos 
sinuatis, tylo et jugis wque longis, illo postice elevato, his 
antice valde approuimatis, ocellis majusculis, in linea wneter 
marginem posticum oculorwm ducta positis, a linea media 
capitis quam ab oculis saltem duplo et dimidio longius 
distantibus, bucculis humilibus, rectis ; rostro coxas posticas 
attingente, articulo secundo duobus apicalibus wiitis breviore, 
tertio quarto longiore, tuberculis antenniferis @ supero 
distinguendis, extus spinula porrecta armatis ; antennis 
quadri-articulatis, articulo primo apicem capitis paullum 
superante, secundo longissimo. Pronotwm medio capite 
parum longius, marginibus lateralibus anticis acutis, leviter 
explanatis et reflexis, angulis lateralibus haud prominulis, 
anguste rotundatis, angulis basalibus latissime rotundatis, 
margine basalirecto. Scutellum pone medium leviter sinwatum. 
Mesosternum carinatum. Orificia metasternalia m rugam 
mediocrem continuata. Hemelytra apicem abdominis longe 
superantia, corio apicem abdorinis subattingente (3 ) vel hoc 
puullo breviore (2), margine apicali levissime sinuato, angulo 
upicali acuto, membrana venis circiter sex instructa, exterioribus 
tribus furcatis et pone medium vena transversa conjunctis. 
Ale apicemabdominis superantes, sed hemelytris paullo breviores. 
Abdomen hemelytris haud vel vix latins, subtus utringue prope 
basin vitta stridulatoria curvata usque ad apicem segmente 
tertii pertracta instructum, segmentis quingue primis ventralibus 
in mare medio valde retractis, quam lateribus fere triplo 
brevioribus, segmento sexto hujus sexus permagno, precedentibus 
unitis medio longiore, angulis apicalibus hujus segmentt in 
mare latissime rotundatis, fere deletis, margine apicali recto, 
in femina obtusiusculis, margine apicali late arcuato-sinuato, 
segmento genitali maris latissimo, angulis apicalibus productis, 
margine basali sub segmento sexto ventrali subocculto, medio 
processu liguliformi verticaliter recurvo instructo. Pedes 
longiusculi, femoribus posticis intus spiculis stridulatorus 
umseriatis instructis; tibtis omnibus femoribus subequilongis, 
superne sulcatis ; tarsis triarticulatis, articulo primo tarsorum 
posticorum tncrassato. 
This remarkable genus is to be placed near Commius Stal, but 
is at once distinguished by the four-jointed antenne, the very 
long hemelytra, and the enormously developed sixth ventral and 
genital segments in the male. The considerable length of the 
hemelytra is probably due to the necessity for preserving the 
inner parts of the very wide and open male genital segment from 
injury. 
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