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2.
The genus Pseudaeginella is analysed herein by cladistic methods based on a morphological data matrix of 49 characters × 18 terminal taxa. Based on the results, we comment on the phylogenetic position of Paradeutella within Pseudaeginella, and we propose Pseudaeginella multispinosa comb. nov. and Pseudaeginella tanzaniensis comb. nov. Pseudaeginella freirei sp. nov. is described from the Abrolhos Bank, north-eastern Brazil. We provide an updated key to the Pseudaeginella species. http://www.zoobank.org/urn:lsid:zoobank.org:pub:F573E845-822E-41D6-8F58-FE54C5653A53 相似文献
14.
In the present paper, we review the fossil record of the Hydrometridae (Hemiptera, Gerromorpha) and present a new species from the Early Cretaceous Crato Formation of Northeastern Brazil, Christometra paradoxa gen. et sp. nov. This species is based on a new specimen (a female), as well as a previously figured one (a male), providing a rare case of preservation of sexually dimorphic features in the fossil record. This is the third species coming from this deposit, which is Aptian-Albian in age and the oldest deposit to have yielded hydrometrids so far. Only five other Mesozoic species are known, being slightly younger in age (Cenomanian). So far, phylogenetic analyses have recovered Cretaceous hydrometrids as basal relative to Cenozoic genera but, Christometra paradoxa exhibits several advanced characteristics that unite it in a clade together with the extant genera Hydrometra and Bacillometroides, in a more derived position than any previously known fossil hydrometrid. The present publication is registered in the Official Register of Zoological Nomenclature (Zoobank), under the registration number http://zoobank.org/urn:lsid:zoobank.org:pub:3CFA88AB-3CBC-4CCC-8196-698ECC863947. The registration number for the nomenclatural act of the genus is http://zoobank.org/urn:lsid:zoobank.org:act:84744426-1259-4864-8E3F-E43E0DAB2021, and that of the species is http://zoobank.org/urn:lsid:zoobank.org:act:23700AB2-F7AD-4F50-A5E7-CB28868079B2. 相似文献
15.
Until recently only 33 species of spiders had been known from Iraq. New material collected in northern Iraq reveals 20 species, 13 genera and six families new to the country. One species, Pterotricha arzhantsevi sp. n. is described as new to science. Comparative figures are provided for seven species; the 54 species currently known from Iraq are listed and their occurrence in neighbouring Iran and Turkey is shown. http://www.zoobank.org/urn:lsid:zoobank.org:pub:4812F8A8-7A95-4D66-8E2D-CE42F73E7E91 相似文献
16.
The new species Quinquelaophonte aurantius sp.nov. is described, based on specimens collected in Portobello Bay, New Zealand. The species is distinguishable for having long fine setules in the anal operculum distal edge, a breadth ratio of caudal rami length above 3.5, and a rudimentary antenna abexopodal spine. This new species differentiates from Q. parasigmoides and Q. wellsi on the following autapomorphs; short spine-like outer seta in segment 2 of females P3 endopod and the partial reduction of setae in spines from male P3 and P4, longer V-shaped caudal rami, an almost non-existent terminal portion of the antenna exopod with short lateral setae. Phylogenetic analyses demonstrate the position of Quinquelaophonte within the family Laophontidae. Publication LSID: urn:lsid:zoobank.org:pub:D5E5EB23-8348-446D-9606-EA8B27EC0EDC LSID for Q. aurantius: urn:lsid:zoobank.org:act:834C4218-209B-4B70-8AD5-35512B5FCB29 相似文献
17.
In this paper, Megastygarctides sezginii sp. nov., a new marine species from the Black Sea (Turkey), is described. Morphological and morphometric studies have revealed that M. sezginii sp. nov. is most similar to M. setoloso Morgan & O’Reilly, 1988, but differs from it through the presence of two types of fibrils, a lack of cuticle granulation, the presence of three lateral projections with fibrils, leg fibrils arranged in transverse stripes and the presence of clumps of fibrils near the clavae. In the studied environment, the new species is frequently found in summer and almost absent in winter. Additionally, a taxonomic key for all Megastygarctides species is presented. http://zoobank.org/urn:lsid:zoobank.org:pub:53AA1D57-8700-4A18-9099-1CDDBAEB4D3A 相似文献
18.
A new genus and two new species of Kempyninae (Osmylidae), Ponomarenkius excellens gen. et sp. nov. and Arbusella magna sp. nov., are described from the Middle-Upper Jurassic of Daohugou (China). The finding demonstrates that extant kempynins, a typical Gondwanan group, are overshadowed by their Mesozoic relatives in taxonomic diversity and variety of wing venation. Striped patterns of both newly described species are an example of cryptic and disruptive coloration, possibly pinnate leaf mimesis. Eyespot patterns of Arbusella magna sp. nov. can be explained as a result of sexual selection. The abundance and distribution of the Mesozoic kempynins are discussed. http://zoobank.org/urn:lsid:zoobank.org:pub:CF33DEB4-0A69-407D-B1B2-1EC6537E4095 相似文献
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