LIST OF HOMOPTEROUS INSECTS. 93 
converging towards the vertex, where they are connected; sides 
widening towards the face, which is triangular, has an indistinct 
ridge on each side, and is closely connected with the front. ‘Thorax 
very small. Fore wings narrow; veins and veinlets few, quite 
parallel and regular. Hind wings slightly cinereous; veins black, 
very few. Length of the body 2 lines; of the wings 4 lines. 
a, Philippine Isles. From Mr. Wood’s collection. 
Genus HYSTEROPTERUM, Cat. Hom, p. 373. 
/ 
HysTEROPrERUM TRUNCATUM. 
Testaceum, latum, fusco varium; vertex transversus, depressus, 
lateribus subelevatis ; frons elongata, subobliqua, tricarinata, 
antice latior ; facies lanceolata, subtus retracta; ale antice 
late, fusco consperse, extus dilatata, basi tuberculate, lituris 
discalibus nigricantibus, angulo eateriore rotundato, interiore 
acuto ; postice cineree, venis nigris. 
Testaceous, broad, varied with brown. Vertex transverse, de- 
pressed, its borders slightly elevated; front slightly oblique, much 
longer than broad, with three keels, the lateral pair converging at 
each end; sides slightly elevated, somewhat dilated and curved 
towards the face, which is Janceolate and retracted beneath. 
Prothorax transverse, short-conical in front. Fore wings broad, 
widening exteriorly, truncate along the exterior border, minutel 
speckled with brown, slightly tuberculate towards the base, wit 
some blackish marks in the disk towards the exterior border; ex- 
terior angle rounded ; interior angle acute; veins and veinlets some- 
what irregular, Hind wings gray; veins black. Length of the 
body 3 lines; of the wings 7 lines. 
a Java, Presented by J. C. Bowring, Esq. 
HysteRoprerRuM GIBBIPENNE. 
Testaceum ; vertex perangustus, lateribus setosis valde elevatis antice 
nigro guttatis ; frons longissima, perangusta, carinata, linearis, 
lateribus valde elevatis ; mesothoraw nigro trivittatus ; abdo- 
men gibbosum, subtus nigrum, segmentis rufo marginatis ; ale 
antice sublurid@, semivitree, costa subconcava, margine in- 
teriore nigro convewo, venis piceis ; postice subcineree, venis 
nigris. 
