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Show 1866.] MR. II. W. BATES ON FORMOSAN COLEOPTERA. 341 surface is marked with a number of shallow scattered punctures, having a brassy greenish tinge. The white spots are sometimes more and sometimes less developed; the anterior discoidal spot is sometimes linear, and clavate at its posterior end ; it is the hinder portion of what in other species is the humeral lunule; the lateral line is sometimes absent; the apical virgula narrows off, and does not reach the sutural angle. ClCINDELA PSILICA. Gracilis, thorace cylindrico, angusto; capite thoraceque tenuiter strigosis, aureo-cupreis, late cyaneo marginatis ; elytris obscure cupreis, sutura viridi, lateribus cyaneo limbatis, arqualiter distincte punctatis, lunula humerali brevi, macula parva transversa laterali apud medium alterisque duabus apicalibus albis ; capite inter oculos valde depresso, utrinque multistriato; labro utroque sexu testaceo, medio dente valido, margine anteriore recto, angulis lateralibus distinctis; antennis gracilibus, elongatis; elytris dente suturali acuto; subtus pedibusque elongatis viridi-arneis. Long. 4\ lin., S 2 • Closely allied to C. craspedota, Schaum, from Celebes, differing in being rather more elongated, with the elytra opake instead of shining, and in having a humeral lunule and a spot at the sutural apex of the elytra. The thorax is elongate, narrow, and almost perfectly cylindrical. The head is strongly depressed between the eyes ; the labrum has in both sexes a longish central tooth, and its front edge forms a straight line from the tooth to the lateral angles, which are distinct. The antennae are long and slender; the palpi pale yellow, with the terminal joints brassy green. The head and thorax are of a rather bright coppery hue with a golden tinge, and with % their sides broadly margined with greenish blue. The elytra are dull copper, and uniformly covered with largish and distant punctures; the suture is shining green, and the lateral borders dark greenish blue; the humeral lunule is short and slender, the marginal spot in the middle is broader than long, the subapical marginal spot is small and reniform. COLLYRIS FORMOSANA. Cyanea, nitida, elytris viridi-carruleis, capite et thorace larte vio-laceis, labro chalybeo ; antennis subelongatis, articulis basali-bus cyaneis, 3°-7m rufo-piceis (cartera desunt); capite pone oculos subquadrato, angulis rotundatis, fronte bisulcata, interstitio longitudinal iter elevato; thorace capite paulo longiore, prope apicem et basin modice strangulato, parte media rotundata ; elytris arqualiter usque ad apices punctatis, apice (2) flexuoso-truncatis, angulo suturali producto; femoribus anticis et intermedins rufis, geniculis cum tibiis et tarsis piceis ; pedibus posticis nigris, femoribus basi rufis, trochanteribus omnibus rufis. Long. 7 lin., 2 • Similar in shape to C. filiformis, Chaud. (Ann. Soc. Ent. Fr. 1864, |