To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)

A detailed study of a group of species closely related to Ocypus nitens (Schrank, 1781) is presented. The questions of morphological evolution, phylogeny and distribution of the species of this complex are considered. In morphological analysis we selected characters using an approach, which is know...

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Autor principal:	E.A. Khachikov
Formato:	article
Lenguaje:	RU
Publicado:	Russian Academy of Science. Southern Scientific Centre. Federal Research Centre 2020
Materias:	coleoptera staphylinidae ocypus morphology phylogeny distribution new species Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/eb8217f7ca9541ccb56a73046847d46f
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spelling	oai:doaj.org-article:eb8217f7ca9541ccb56a73046847d46f2021-12-02T12:25:48ZTo the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)DOI:10.23885/181433262020161-1531691814-33261814-3326https://doaj.org/article/eb8217f7ca9541ccb56a73046847d46f2020-08-01T00:00:00Zhttp://www.ssc-ras.ru/ckfinder/userfiles/files/16(1)_20_Khachikov.pdfhttps://doaj.org/toc/1814-3326https://doaj.org/toc/1814-3326 A detailed study of a group of species closely related to Ocypus nitens (Schrank, 1781) is presented. The questions of morphological evolution, phylogeny and distribution of the species of this complex are considered. In morphological analysis we selected characters using an approach, which is known as “character weighting”. Cluster matrix analysis was implemented in “Cluster analysis” version 5.0.1, using the Chekanovsky-Sørensen similarity coefficient (qualitative); 18 characters were distinguished and transformed into a binary matrix. On the basis of this matrix, a dendrogram of morphological similarity was built. A “manual” phylogenetic analysis using the methods of cladism was applied to identify of phylogenetic relationships. Apomorphic position was identified for 12 characters, on the basis of which the cladogam was built. As a result, it was revealed that this group consists of two phylogenetic branches. One branch is represented by the species O. ponomarevorum Khachikov, 2013, another includes four groups of species: O. cerceticus (O. cerceticus Coiffait, 1964, O. svetlanae sp. n.), O. latens (O. latens Solodovnikov, 2000), O. nitens (O. nitens (Schrank, 1781)) and O. hochhuthi (O. hochhuthi Eppelsheim, 1878, O. nabozhenkoi Khachikov, 2005). The description of the new species Ocypus svetlanae sp. n., locally distributed in the western part of Abkhazia, is presented. The species is close to O. cerceticus from which it reliably differs in the details of structures of the endophallus, primarily in the absence of the basal lamina of monotillator of endophallus and in the somewhat more expanded and flattened triangular monotitillator. Ocypus cerceticus has the monotillator more elongated, slightly chitinized, at the base with the basal lamina that rises above the surface of the endophallus. In addition, the punctures of the abdominal punctation of O. svetlanae sp. n. merge into longitudinal oblique rows, while in O. cerceticus they are more uniform. Ocypus hochhuthi is recorded for the fauna of Russia (North Ossetia) for the first timeE.A. KhachikovRussian Academy of Science. Southern Scientific Centre. Federal Research Centrearticlecoleopterastaphylinidaeocypusmorphologyphylogenydistributionnew speciesBiology (General)QH301-705.5RUКавказский энтомологический бюллетень, Vol 16, Iss 1, Pp 153-169 (2020)
institution	DOAJ
collection	DOAJ
language	RU
topic	coleoptera staphylinidae ocypus morphology phylogeny distribution new species Biology (General) QH301-705.5
spellingShingle	coleoptera staphylinidae ocypus morphology phylogeny distribution new species Biology (General) QH301-705.5 E.A. Khachikov To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
description	A detailed study of a group of species closely related to Ocypus nitens (Schrank, 1781) is presented. The questions of morphological evolution, phylogeny and distribution of the species of this complex are considered. In morphological analysis we selected characters using an approach, which is known as “character weighting”. Cluster matrix analysis was implemented in “Cluster analysis” version 5.0.1, using the Chekanovsky-Sørensen similarity coefficient (qualitative); 18 characters were distinguished and transformed into a binary matrix. On the basis of this matrix, a dendrogram of morphological similarity was built. A “manual” phylogenetic analysis using the methods of cladism was applied to identify of phylogenetic relationships. Apomorphic position was identified for 12 characters, on the basis of which the cladogam was built. As a result, it was revealed that this group consists of two phylogenetic branches. One branch is represented by the species O. ponomarevorum Khachikov, 2013, another includes four groups of species: O. cerceticus (O. cerceticus Coiffait, 1964, O. svetlanae sp. n.), O. latens (O. latens Solodovnikov, 2000), O. nitens (O. nitens (Schrank, 1781)) and O. hochhuthi (O. hochhuthi Eppelsheim, 1878, O. nabozhenkoi Khachikov, 2005). The description of the new species Ocypus svetlanae sp. n., locally distributed in the western part of Abkhazia, is presented. The species is close to O. cerceticus from which it reliably differs in the details of structures of the endophallus, primarily in the absence of the basal lamina of monotillator of endophallus and in the somewhat more expanded and flattened triangular monotitillator. Ocypus cerceticus has the monotillator more elongated, slightly chitinized, at the base with the basal lamina that rises above the surface of the endophallus. In addition, the punctures of the abdominal punctation of O. svetlanae sp. n. merge into longitudinal oblique rows, while in O. cerceticus they are more uniform. Ocypus hochhuthi is recorded for the fauna of Russia (North Ossetia) for the first time
format	article
author	E.A. Khachikov
author_facet	E.A. Khachikov
author_sort	E.A. Khachikov
title	To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
title_short	To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
title_full	To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
title_fullStr	To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
title_full_unstemmed	To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)
title_sort	to the knowledge of the complex of species close to ocypus nitens (schrank, 1781) (coleoptera: staphylinidae: staphylininae)
publisher	Russian Academy of Science. Southern Scientific Centre. Federal Research Centre
publishDate	2020
url	https://doaj.org/article/eb8217f7ca9541ccb56a73046847d46f
work_keys_str_mv	AT eakhachikov totheknowledgeofthecomplexofspeciesclosetoocypusnitensschrank1781coleopterastaphylinidaestaphylininae
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To the knowledge of the complex of species close to Ocypus nitens (Schrank, 1781) (Coleoptera: Staphylinidae: Staphylininae)

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