凹室叶蝉属一新种及其属征的再描记(同翅目: 叶蝉总科,耳叶蝉科)  

A NEW SPECIES OF THE GENUS DUSUNA WITH A REDESCRIPTION OF ITS GENERIC CHARACTERS (HOMOPTERA: CICADELLOIDEA: LEDRIDAE)

作　　者：蔡平[1,2] 杨集昆[1,2] 

机构地区：[1]浙江农业大学植保系 [2]中国农业大学昆虫学系

出　　处：《华东昆虫学报》1997年第2期1-3,共3页Entomological Journal of East China

摘　　要：本文根据采自云南的标本描记凹室叶蝉属（ＤｕｓｕｎａＤｉｓｔａｎｔ）一新种：红褐凹室叶蝉Ｄｕｓｕｎａｂｒｕｎｎｅａ，ｓｐ．ｎｏｖ．，并以此种雄性对该属属征进行再描记。模式标本保存在中国农业大学昆虫标本室。A new species of the genus Dusuna from Yunnan, China is described in this paper, with a redescription of its generic characters. The type specimen is kept in the Insect Collections of Chinses Agricultural University.Dusuna brunnea, sp.nov. (Figs. 1-7)♂, Length 6.0mm; incl. tegm. 6.5mm; exp. pronot. angl. 3.5mm.This species is similar to Dusuna bimaculata Cai et Kuoh in body size and external characters, but can be readily distinguised from the latter by colouring brunneus and posterior margin of vertex without any black marking.Holotype ♂ China: Yunnan, Lancang, Menglang, 1050m, 20-Ⅳ-1981, coll. by Li Fasheng.Redescription of the generic characters of Dusuna:Medium-sized leafhoppers. Body broad and flat, coarsely punctate. Colouration brownish. Crown small and short, triangular, about half as long as breadth between eyes. Ocelli placed behind the line of anterior margin of eyes, nearer to each other than to eyes. Face bended into two planes, along the line between antennae , frontoclypeus broad and large, antennal depressions rather deep. Pronotum transverse, gradually rising from anterior to posterior margin, much longer than crown, the lateral areas obtuse-angularly produced, anterior margin behind head excised, posterior margin sinuate. Scutellum shorter than pronotum, disk concave, the middle part of basal margin, basal angles and anterior half moundly prominent. Tegmina relatively short, anterior margin sinuate, apical margin roundly truncate, veins prominent and marginally punctate, on posterior half the disk divided into foveate cellular areas, clavus uneven, claval veins crestiformly prominent and the middle part of them coalescent. Legs moderately long and slender, hind tibiae not foliaceously dilated, spinned on margin, apical half of outer margin with several dentate-spines. Posterior margin of 7th ternite of female sinuate, that of 8th ternite of male nearly rectilinear. Apical half of pygofer, with a process, convex as wooden dipper-shaped. Subgenital plate broad and short. Co

关 键 词：叶蝉科 同翅目 模式标本 昆虫标本 雄性 新种 中国农业大学 保存 

分 类 号：Q969[生物学—昆虫学]