查看更多>>摘要：Trischistoma contains four accepted species. In this paper four more new species are added to the genus. Morphologically, these four new species can be briefly characterized as follows: T. triregius sp. nov. by having a pair of lateral cervical setae; T. otaika sp. nov. by having a post-vulval uterine sac and a prominent dorsal tooth; T. waiotama sp. nov. by having a single ventromedian cervical seta; T. tukorehe sp. nov. by having two prominent dorsal teeth and long body length. Molecularly, T. triregius sp. nov., T. otaika sp. nov., T. waiotama sp. nov. and one published species, T. monohystera can be differentiated by SSU & LSU analysis. Among the four previously described species, the main distinguishing feature for T. pellucidum and T. gracile is the absence of a postvulval uterine sac, which differentiates them from T. monohystera, and T. equatoriale. All previously described species also can be differentiated by: body length and values of De Man's Indices a, b, c, c' and V. A key is provided for all eight species of the genus.
查看更多>>摘要：A new species, Phytoptus atherodes, an eriophyoid mite found on Carex atherodes Spreng. in North-West Russia, is described and a supplementary description of the poorly known species, Phytoptus hirtae Roivainen 1950, from Carex hirta L. is given. P. atherodes sp. n. has deutogyne and protogyne females which differ in the length of the body, prodorsal shield, setae v, phi and c1; the number of dorsal annuli and length and number of empodial rays. Variability of empodial ray numbers among summer (protogyne) and winter (deutogyne) females of P. atherodes sp. n. and P. hirtae was studied for the first time and may reflect different stages of evolution within the genus Phytoptus.
查看更多>>摘要：Currently, six genera are known in the family Camerobiidae (Acari: Prostigmata). Herein we propose a new genus, Acamerobia, based on a new species, Acamerobia inflatus, from bark of Jacaranda mimosifolia in Brisbane, Australia, and redefine the familyand provide a key to genera. We also give comments on the idiosomal chaetotaxy for the family.
查看更多>>摘要：A new species of harlequin frog, genus Atelopus, is described from the highlands in the northern part of the Cordillera Central, Colombia. The new species, is distinguished from all other species in the genus by the presence of a postorbital crest widely raised, well defined coni in postocular region and arms, small warts and spiculae scattered on the dorsal surfaces of the body and thighs and, vertebral neural processes conspicuous. Females are uniform dark reddish brown on dorsum, and bright orangeventrally; males are dark brown dorsally, and ventrally white or yellowish with dark brown irregular stripes and blotches. The conservation population status of the new species is discussed, additionally the natural history and aspects about an unusualbehavior in the genus is provided.
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