吸虱和其啮齿动物宿主的关系—偕同进化的证据

采自贵州省猪尾鼠的吸虱具有特殊的形态。李氏欣奇虱独自成为一科。双叶盲鼠虱隶拟血虱科。拟血虱科中的拟血虱属和钩板虱属均寄生于鼹科,裂虱属和盲鼠虱属则寄生于睡鼠科和刺山鼠科。后者曾被置于睡鼠科。研究食虫目动物的吸虱将可能对吸虱与其宿主动物的偕同进化提供更多的证据。

COPHYOLGENETIC EVIDENCE FROM LICE OF ABERRANT RODENTS

Two species of sucking lice were collected off Typhlomys cinereus from Guizhou,China Mirophthirus line is heavily ehitinized.It has a broad head and thorax,With the legs long and slender and widely set apart.The middle pair of legs is the longest,with a span equalling body length.The thorax with only the middle portiou of pro-and mesonota,and the pro-and mesosternites fused.The sutures of the thoracic segments are obvious.We made a new family for it,the Mirophthiridae. The other louse,Typnlomyophthirus bifoliatus was placed under the family Haematopinoididae,characterized by having longitudinally splitted 2nd sternite of the abdomen.Hence the family contains four genera:Haematopinoides and Ancistroplax off Talpidae and Soricidae of Insectivora,and schizopnthirus and Typhlomyophthirus off Gliridae and Platacanthomyidae of Rodentia.Infestations of all the four genera of lice on their respective hosts are considered to be primary. The monotypic genera Typhlomys and platacanthomys form the family Plat- acanthomyidae which had been a subfamily of Museardinidae or G1iridae.Plat- acanthomys is Indian and Typhlomys is Oriental.The Typhlorayophthirus and Mirophthirus are the only sucking lice recorded from rodents of this family.