阔颈叶蝉属一新种记述(半翅目:叶蝉科)

A New Species of the Genus Drabescoides (Hemiptera:Cicadellidae)

记述阔颈叶蝉属Drabescoides1新种,即长臂阔颈叶蝉Drabescoides longiarmus sp.nov.。新种近似于圆突阔颈叶蝉Drabescoides umbonata Shang,Zhanget Shen,2003,主要区别为:本种体形稍大,翅脉色泽较深,体背、颜面黄褐色,雄虫阳茎干背面两片状脊大且显著靠拢,尾节侧瓣三角形,具2个刺突,连索干细,臂极长,两臂夹角小,阳基侧突端部"马蹄状",表面着生微齿,雌虫第7腹板后缘弧形深凹入。提供了新种的鉴别特征图。模式标本保存在贵州大学昆虫研究所。

In this paper, a new species Drabescoides longiarmus sp. nov. is described from China. The type specimen is deposited in the Institute of Entomology, Guizhou University. Drabescoides longiarmus sp. nov. （ Figs. 1 - 8 ） Body length （incl. tegm. ） ： ♂7.0 - 7.5 mm,♀ 7.6 mm. This new species resembles D. umbonata Shang, Zhang et Shen, but has a longer body, dark forewing-veins, a yellowish-brown body and face, the male aedeagal shaft has two big lamellae on the dorsal surface and significantly approach each other, pygofer triangular, with two spin-iform processes, connective with a narrow stem and very long arms with the inner margin between the arms narrowly rounded. The apical process is horseshoe-shaped with few denticles, the hind margin of female ＇abdominal sternum Ⅶ is deep arcus. Holotype： ♂ , Hainan Province： Bawangling, 24-Ⅶ-2008, coll. Li Hong-rong. Paratypes： 1 ♂, Hainan Province： Jianfengling, 11-Ⅶ-2007, coll. Li Yu-jian; 1 9, HainanProvince： Bawangling, 24-Ⅶ-2008, coll. Li Hong-rong; 1 ♂ 1 9, Hainan Province： Diaoluoshan, 17-Ⅶ-2007, coll. Song Qiong-zhang.