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Paravietnura gen. n., a new intriguing genus of Neanurini from the Caucasus (Collembola, Neanuridae, Neanurinae).

ABSTRACT: Paravietnuragen. n. is described and established for two new species of Neanurini from the Caucasus. The new genus is characterized by an unusual combination of features: the fusion of all lateral tubercles on the head into a single mass, the strong reduction of chaetae on the head, the fusion of cephalic tubercles Af and Oc into a transverse band, the absence of labial chaetae f, the presence of microchaetae on furca rudimentary, and the penultimate abdominal tergum with two tubercles separated along the midline. Paravietnuragen. n. strongly resembles Vietnura Deharveng & Bedos, 2000, a monotypic genus up to date known only from Vietnam. The main characteristics of Paravietnura notabilissp. n. include an ogival labrum, the absence of chaetae A on the head, relatively thick and widely sheathed long macrochaetae, and minute microchaetae without chaetopores on furca rudimentary. Paravietnura insolitasp. n. differs from the previous species in chaetotaxic details, the size of furcal microchaetae, and the shape of the labrum. Short comments on the generic diversity of the tribe in the Western Palaearctic are also provided.

SUBMITTER: Smolis A

PROVIDER: S-EPMC5904444 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Paravietnura gen. n., a new intriguing genus of Neanurini from the Caucasus (Collembola, Neanuridae, Neanurinae).

Smolis Adrian A Kuznetsova Nataliya N

ZooKeys 20180222 739

Paravietnuragen. n. is described and established for two new species of Neanurini from the Caucasus. The new genus is characterized by an unusual combination of features: the fusion of all lateral tubercles on the head into a single mass, the strong reduction of chaetae on the head, the fusion of cephalic tubercles Af and Oc into a transverse band, the absence of labial chaetae f, the presence of microchaetae on furca rudimentary, and the penultimate abdominal tergum with two tuber ...[more]

PMID: 29674880

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Project description:Seven new species of the subfamily Neanurinae from north-western Iran are described and illustrated in detail. Endonura agnieskae sp. nov. differs from the most similar congener, E. reticulata (Axelson, 1905), in chaetotaxic details and the arrangement of tubercles on the dorsal side of the body. Endonura annae sp. nov. can be easily recognised by its wide labrum, the absence of chaetae C on the head and the presence of a toothed claw. Endonura schwendingeri sp. nov. is especially distinctive due to the absence of chaetae A and Ocp on the head and the presence of the male ventral organ. Deutonura breviseta sp. nov. is related and most similar to D. persica Smolis, Shayanmehr & Yoosefi-Lafooraki, 2018, described recently and known from Mazandran Province in Iran. The new species can be easily distinguished by the following set of features: dark pigmented body, presence of chaetae C and Dl3 on the head, absence of microchaetae on the furca rudimentary, presence of thickened macrochaetae on dorsal side of body and absence of cryptopygy. The main characteristics of Deutonura sengleti sp. nov. include a white body with dark pigmented eyes, the fusion of tubercles Di and De on the first thoracic segment and the presence of the male ventral organ. Deutonura iranica sp. nov. is superficially similar to D. gibbosa Porco, Bedos & Deharveng, 2010, a species known from the Alps and Jura in Europe, but it differs in the body colour and the number of labial chaetae and chaetae (L+So) on the head. Paravietnura rostrata sp. nov., the first member of this enigmatic and intriguing genus known from Iran, is characterised by an unusually elongate ogival labrum and extreme reduction of dorsal chaetotaxy. Furthermore, new records of several other species of the subfamily: Cryptonura maxima Smolis, Falahati & Skarżyński, 2012; C. persica Smolis, Falahati & Skarżyński, 2012; Deutonura persica; Endonura longirostris Smolis, Shayanmehr, Kuznetsova & Yoosefi-Lafooraki, 2017; E. paracentaurea Smolis, Shayanmehr, Kuznetsova & Yoosefi-Lafooraki, 2017; Neanura deharvengi Smolis, Shayanmehr & Yoosefi-Lafooraki, 2018; N. muscorum (Templeton, 1835) and Protanura papillata Cassagnau & Delamare Deboutteville, 1955 are given. The present study is based on the rich material collected by Antoine Senglet and loaned by Peter J. Schwendinger.

Dataset Information

Paravietnura gen. n., a new intriguing genus of Neanurini from the Caucasus (Collembola, Neanuridae, Neanurinae).

Publications

<i>Paravietnura</i> gen. n., a new intriguing genus of Neanurini from the Caucasus (Collembola, Neanuridae, Neanurinae).

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