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Show 1895.j HEMIFPEEA-HOMOPTEEA OF THE ISLAND OE ST. VINCENT. 61 CATONIA, gen. nov. Form of Plectoderes, and apparently related to that genus in general structure. Long subovate, with the hemelytra opaque throughout, almost straight, but feebly curved at base and apex, with the veins coarse and prominent. Vertex about half as wide as the pronotum, tapering a little towards the tip, a little longer than the large subglobular eyes, scooped out lengthwise and carinated, the tip more or less acutely curved and with the margin reflexed, arched above, base triangularly excavated, and carinate on the border; front long, carinated, widening towards the epistoma, and with curving reflexed sides, the reflexed border continued on the epistoma. Rostrum reaching to the posterior coxse. Pronotum constituting a very narrow collar, triangularly excavated behind and prolonged into the triangular aperture of the head, the pleural part expanded into a wide rounded flap below the eyes. Mesonotum a little wider than long, sinuated each side in front, tricarinate, triangularly narrowing posteriorly, with the scutellum depressed and nearly equilateral triangular. Posterior tibise unarmed, excepting at tip, where the middle spine is much longer than the others. Veins of disk of corium simple and nearly straight, the radial vein forked behind the middle of the corium and the second ulnar also forked at nearly the same distance, the apical series of areoles forming a nearly symmetrical curve around the arc of the apex of membrane, but arrested in the inner angle by a long and wide, nearly straight areole; costal space most opaque, long, acute at tip, and bounded there by a small triangular cell. Antennse composed of a large globular base, with a very fine bristle projecting from it. CATONIA INTEICATA, sp. nov. Fuscous, somewhat shaded with paler colour. Face a little paler than the body, minutely and closely speckled with fuscous, the carinated margin interrupted with fuscous; front a little longer than wide, slightly tapering at apex, prominently carinated on the lateral margins, and there more distinctly marked with pale dots; cheeks and pleural pieces marbled and speckled with fuscous and testaceous. Pronotum testaceous, dotted with fuscous. Legs smoke-brown, the anterior and middle tibise with a yellow band on the middle, besides others at base and tip, and on posterior tarsi. Mesonotum minutely dotted with testaceous. Hemelytra covered with minute pale granules, the costal area varied with testaceous, and sometimes tinged with rufous at tip, longitudinal veins interruptedly testaceous; the membrane paler, margined with fuscous, also with two arcuated brown clouds, the longitudinal veins brown and white at intervals, white at tip, the transverse veins white. Venter dull fuscous, with patches of white on the middle and sides. Length to tip of abdomen 4 m m , ; to end of hemelytra 5 | m m . One specimen was secured in the Petite Bordelle Valley, at an |