二刺角蝉属分类地位的讨论及中国种类的记述（同翅目：角蝉科）

二刺角蝉属ＨｅｍｉｃｅｎｔｕｒｓＭｅｌｉｃｈａｒ的分类地位历来有很大的争议，不同的作者往往把该属放在不同的亚科甚至不同的科中。该属全世界已知５种，均分布于东洋区，我国已记载有二种，即：Ｈ．ｃｏｒｎｕｔｕｓＦｕｎｋｈ．和Ｈ．ａｔｅｎｕａｔｕｓＦｕｎｋｈ．。作者研究了保存于西北农业大学昆虫博物馆的二刺角蝉属标本５０余件，鉴定出６种，其中有５新种：宽二刺角蝉Ｈ．ｌａｔｕｓ，褐二刺角蝉Ｈ．ｂｒｕｎｎｅｕｓ，细二刺角蝉Ｈ．ｔｅｎｕｉｓ，短二刺角蝉Ｈ．ｂｒｅｖｉｓ，斜二刺角蝉Ｈ．ｏｂｌｉｑｕｕｓ。并基于详细的形态学、细胞学、幼期形态特征的研究，进一步论证了该属的分类地位，认为应放到角蝉科Ｍｅｍｂｒａｃｉｄａｅ露盾角蝉亚科Ｃｅｎｔｒｏｔｉｎａｅ弧角蝉族Ｌｅｐｔｏｃｅｎｔｒｉｎｉ．。

A DISCUSSION ON THE TAXONOMIC STATUS OF GENUS HEMICENTRUS MELICHAR, WITH DESCRIPTIONS OF NEW SPECIES FROM CHINA (HOMOPTERA: MEMBRACIDAE)

The taxonom ic status of genus IIem icentrus is in dispute. O n the basis of examination of adult, nymph and karyotype features of genus HemicentTus M elichar andLeptocentrus Stal, the authors agree with D eitz (1985) to place genus Hemice.ntrus to tribeLeptocentrini Distant, for the both taxa are extremly similar in many aspects exceptHem icentrus witho ut a posterior process in ad nit.Six species of genos Hemicentrus are also described or redescribed in present paper,among them five are new to science: H. lains, H. tennis, H. barnneds, H. bTevis, H.o b llq u u s.