中国藏东南怪蚤属一新种记述(蚤目:细蚤科)

DESCRIPTION OF A NEW SPECIES OF GENUS PARADOXOPSYLLUS IN SOUTHEAST TIBET,CHINA(SIPHONAPTERA:LEPTOPSYLLIDAE)

记述采自中国西藏东南部工布江达县怪蚤属一新种,钩突怪蚤Paradoxopsyllus hamutus sp.nov.。新种♂以其可动突宽大等的特征与分布于中国四川的宽怪蚤P.latus Chen,Wei et Liu 1982和尼泊尔的指突怪蚤P.digitatus Lewis,1974近似。模式标本于2018年11—12月采自西藏自治区工布江达县农耕区海拔约3400 m的北社鼠Niniventer confuicianus体上。

Paradoxopsyllus hamutus sp.nov.The movable process of new species near rectangle and it over 1/2 of extending beyond apex of fixed process.New species is similar to Paradoxopsyllus latus and Paradoxopsyllus digitatus,but can be distinguished from the latter two and other species according to the following comprehensive characteristics:♂(1)Movable process of clasper is broad hoe-shaped,the widest part is at the end,the ossifying rod near the subposterior margin of base,the base is wider and shorter,and the posterior area has less bristle.(2)Apex lobes of posterior arms of St 9 smaller,the ventral bulge with 3 longer setae exceeding the posterior arms in length.(3)Posterior process of clasper is smaller.(4)Crochet of aedeagus is crochet-shaped and has a deep and wide dorsal concave.(5)Posterior bristle of the hindtibial is longer than the length of the segment,and the long bristle of segment II of hind tarsus is longer than the end of the fifth tarsal segment.♀(6)Posterior margin of the St 7 with a small sinus or weak bulge below middle.Holotype♂,2.5 mm long,paratypes 3♀♀(about 2.2 mm)were collected in November to December,2018 ex Niniventer confuicianus from Gongbujiangda County(30°00′N,93°98′E,3400 m),Tibet of China.Types 1♂,1♀are deposited in the Yunnan Institute of Parasitic Diseases Control and Prevention,2♀♀are deposited in the Linzhi Center for Disease Control and Prevention,Tibet.The name hamutus is derived from the Latin,meaning a hamulus.Here it applies to the hook shape of the crochet of the male.