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zhong guo shui ye zuo ji shu
Pages: 137-147
Year: Issue:  2
Journal: Acta Entomologica Sinica

Keyword:  水叶前胸背板叶蝉刻点食根金花虫水稻害虫金属色鞘翅触角雌虫;
Abstract: The present paper deals with the Donaciine beetles in three parts: 1. On the clas-sification of the subfamily, 2. On the species injurious to rice plants, 3. On a newgenus and three new species from Kwangsi and Yunnan. Only the descriptions of partthree are summarized below. The type specimens are kept in the Institute of Zoology,Academia Sinica. Prodonacia, gen. nov. Type species: Prodonacia shishona, sp. nov. Allied to Donacid F., but with the underside of body less densely pubescent, theangles of prothorax without. bristles, the base of pronotum entirely unmargined, the inter-mediate segments (3--6) of antennae shining and scarcely pubescent and the elytrawithout a pubescent patch at each side on the perpendicular face anterior to humeralcallus. The Assamese species Donacia assama Goecke (1936) appears to belong to this newgenus.Prodonacia shishona, sp. nov. Fig. 9 Head and pronotum aeneous, elytra and underside aeneo-castaneous, antennae andlegs rufous, apical portion of femora aeneo-castaneous (). Head closely punctate,with a deep longitudinal furrow in the middle and a pair of tubercles above the antennae.Antennae filiform, the five terminal segments slightly but distinctly thickened, hairy andopaque; third segment almost as long as second, but slightly shorter than fourth, fifthdistinctly longer than each of the following. Pronotum subquadrate, much broadenedbefore the middle, much narrower than the elytra at base; angles not produced; surface coarsely and closely punctured, without a median longitudinal furrow except a shallowfovea near base, which is confluent with a transverse impression. Elytra strongly punc-tate-striate, the interstices smooth, minutely and sparingly punctured, distinctly convex nearsides and apex, the latter emarginate. Posterior femora strongly toothed in (Fig. 8c),very weakly or almost untoothed in (Fig. 8d). Length: 6 mm; 7.5 mm. Holotype , allotype , paratypes 1 , 1 . Yunnan: Shi-Shong-Baana (650m, 4, May, 1958).Donacia kweilina, sp. nov. Closely related to D. fukiensis Goecke, distinguished by the pronotum much morethickly pubescent, the femora of not distinctly thicker than those of and the lastabdominal segment of much longer and somewhat triangular in shape (Fig. 10a).Also allied to D. clavareaui Jacobson, but the antennae and legs entirely deep coloured,not partly rufous and the elytra rather more finely punctured with the interstices muchbroader and more sparingly and finely wrinkled. Aeneo-cupreous (, ), sometimes sky-blue (). Antennae long and slender,metallic, the terminal segments black; third segment slightly longer than second and dis-tinctly shorter than fourth. Head with four weak tubercles, the median longitudinal fur-row deep and complete. Pronotum very closely punctured and covered with silvery hairs,the antero-lateral tubercles distinct, the angles fairly strongly produced. Elytra rathersmooth on the inner disc, the punctures oblong, the interstices broad, about 2--3 timesas broad as the cross diametre of the punctures; apex truncate with the outer anglesbroadly rounded. Hind femora (, ) broadly toothed beneath. Length: 6.8--8 mm. Holotype , allotype , paratypes 47 , Kwangsi: Kweilin (April--May,1952).Donacia mediohirsuta, sp. nov. Very like D. fukiensis Goecke, but with the pronotum more transversal, finely pubes-cent only on the median longitudinal area; the longitudinal furrow of interocular areamuch deeper, extending uninterrupted to between the supra-antennal tubercles; the an-terior tibiae scarcely produced at apex; the hind femora () very weakly toothedbeneath and the last abdominal sternite () more strongly angulate at apex (Fig. 10b).General colour aeneo-cupreous. Antennae with the terminal segments rufo-piceous, 3--5segments partly rufous and partly piceous, third segment distinctly longer than second, butslightly shorter than fourth. Length: 8 mm. Holotype Yunnan: Shishong-Baana (1200 m, 15, May, 1958).
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