摘 要：
In this paper, five new species of Chrysomelid beetles are described: two belonging to the Zeugophorine genus Zeugophora Kunze (s. str.) and three to the Chryso-meline genus Phaedon Latreille. The type specimens are kept in the Institute of Zoology, Academia Sinica.Zeugophora cribrata sp. nov. (Fig. 1A)General colour brown; posterior half of head, scutellum, breast and abdomen black; disc of pronotum with a large black patch variable in size, sometimes very large, occupying the whole surface, leaving only the anterior and lateral edges narrowly brown, sometimes more or less reduced but rarely indistinct; elytra with a heart-shaped piceous patch at the middle of base, often not clearly defined, sometimes reduced or absent; pubescence fairly long, pale grey. Upperside strongly and very closely punctate. Antennae rather short, extending back to the humeri, the terminal segments more or less moniliform.--Length: 2.5-3 mm.Closely allied to Z. ancora Eeitter (Fig. 1B), distinguished by the body differently coloured, the antennae much shorter with the six terminal segments somewhat moniliform and the upperside distinctly more closely punctate.Zeugophora cyanea sp. nov.Upperside deep metallic blue, with head and pronotum more or less greenish or aeneous; antennae and underside black, apex of tibiae and tarsi obscure brown. Head deeply and sparingly punctate between the eyes, more closely behind. Antennae extending back to just behind the humeri, the seven terminal segments thickened, opaque. Prothorax rather strongly constricted behind the tubercles, surface usually moderately closely punctate, often with a smooth median longitudinal line. Blytral punctures larger than those of pronotum, fairly closely placed.--Length: 2.8-3.3 mm.A very distinct species, easily separated from all the known species of Zeugo-phora, s. str., by the metallic coloration of the head, pronotum and elytra.Chinghai: Yushu, 3,900 m alt., 12-VIII-1964 (36 specimens).Phaedon alticola sp. nov. (Fig. 2A)Winged; head and pronotum blackish aeneous; scutellum nearly black; elytra deep blue, violaceous or purple; underside black or pitchy black, with a metallic lustre.--Length : 2.5-3.5 mm.Allied to Ph. brassicae Baly, distinguished by the upperside of body not unico-lorous, the punctures of vertex finer and more scattered, being much finer than those of the elytra and the 9th row of elytral punctures situated in the middle of the marginal space, with its basal part closer to the 8th row than the lateral margin.Chinghai: Angchie, 3,700m alt., 3-IX-1965 (12 specimens including the holotype and allotype ) ; Yushu, 3,750m alt., 2-VI-1965 (1 specimen). N. W. Szeehuan, 3230m alt., 9-VI-1961 (9 specimens).Phaedon fulvicornis sp. nov.Apterous; deep aeneous, slightly purplish; antennae, tarsi and apical portion of tibiae yellow-brown. Antennae slender, the five apical segments slightly thickened, each distinctly longer than broad. Head and pronotum finely and sparingly punctate. Base of pronotum unmargined. Elytra more strongly punctate, with the 9th row of punctures situated much nearer to the 8th row than the lateral margin; interstices between the puncture-rows impunctate; epipleura broad at basal third, much narrowed behind. Third segment of tarsi entire.--Length: 3.8 mm.Distinguished from all the known species of the genus by the antennae slender, entirely fulvous, the base of pronotum unmargined and the third segment of tarsi not bilobed.N. W. Szechuan, 3,230m alt., 22-VII-1961 (1 specimen).Phaedon maculicollis sp. nov. (Fig. 2B)Apterous; head and elytra greenish aeneous with ground colour black; prothorax red-brown, the median area of the upper surface black; underside of body castaneous-black, the abdomen sometimes largely testaceous. Head and pronotum moderately closely punctate. Antennae fairly slender, third segment 1.5 times, as long as the second, 7-10 segments each slightly longer than broad. Elytra rather strongly convex above, with the epipleurae broad and impunctate.--Length: 4.2-5 mm.Closely allied to Ph. fulvescens Weise, but very differently coloured,
