About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China

Yixianscarabaeus gen. n. with 2 new species Y. sulcatus sp. n. (type species) and Y. tenuestriatus sp. n. from the Yixian Formation of China are described. This genus can be attributed to the family Eremazidae stat. n. based on the posteriorly open procoxal cavity. Diagnosis of the genus: mandibles...

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Main Author: G.V. Nikolajev
Format: Article
Language:English
Published: Southern Scientific Centre of the Russian Academy of Science, Federal state budgetary institution 2015-11-01
Series:Кавказский энтомологический бюллетень
Subjects:
Online Access:http://www.ssc-ras.ru/ckfinder/userfiles/files/8_Nikolajev.pdf
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author G.V. Nikolajev
author_facet G.V. Nikolajev
author_sort G.V. Nikolajev
collection DOAJ
description Yixianscarabaeus gen. n. with 2 new species Y. sulcatus sp. n. (type species) and Y. tenuestriatus sp. n. from the Yixian Formation of China are described. This genus can be attributed to the family Eremazidae stat. n. based on the posteriorly open procoxal cavity. Diagnosis of the genus: mandibles not produced beyond apex of clypeus; eye partly divided by genal lobe; apex of pronotum with leathery border; posteriorly open procoxal cavity with a clearly visible trochantin; mesocoxae contiguous, positioned at an right angle; meso- and possible metatibia with 2 transverse carinae on external surface; meso- and metatibial spurs are contiguous. Yixianscarabaeinae subfam. n. for this genus is proposed.
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spelling doaj.art-38a6ac3eeb13411f877c070fc7e869d62023-12-03T14:35:59ZengSouthern Scientific Centre of the Russian Academy of Science, Federal state budgetary institutionКавказский энтомологический бюллетень1814-33261814-33262015-11-01112297302DOI:10.23885/1814-3326-2015-11-2-297-302About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in ChinaG.V. Nikolajev0Al-Farabi Kazakh National UniversityYixianscarabaeus gen. n. with 2 new species Y. sulcatus sp. n. (type species) and Y. tenuestriatus sp. n. from the Yixian Formation of China are described. This genus can be attributed to the family Eremazidae stat. n. based on the posteriorly open procoxal cavity. Diagnosis of the genus: mandibles not produced beyond apex of clypeus; eye partly divided by genal lobe; apex of pronotum with leathery border; posteriorly open procoxal cavity with a clearly visible trochantin; mesocoxae contiguous, positioned at an right angle; meso- and possible metatibia with 2 transverse carinae on external surface; meso- and metatibial spurs are contiguous. Yixianscarabaeinae subfam. n. for this genus is proposed.http://www.ssc-ras.ru/ckfinder/userfiles/files/8_Nikolajev.pdfColeopteraScarabaeoideaEremazidae stat. n.Lower CretaceousChinataxonomynew subfamilynew genusnew species
spellingShingle G.V. Nikolajev
About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
Кавказский энтомологический бюллетень
Coleoptera
Scarabaeoidea
Eremazidae stat. n.
Lower Cretaceous
China
taxonomy
new subfamily
new genus
new species
title About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
title_full About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
title_fullStr About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
title_full_unstemmed About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
title_short About raising of the status of the subfamily Eremazinae (Coleoptera: Scarabaeoidea: Scarabaeidae) with description of new taxa from the Mesozoic in China
title_sort about raising of the status of the subfamily eremazinae coleoptera scarabaeoidea scarabaeidae with description of new taxa from the mesozoic in china
topic Coleoptera
Scarabaeoidea
Eremazidae stat. n.
Lower Cretaceous
China
taxonomy
new subfamily
new genus
new species
url http://www.ssc-ras.ru/ckfinder/userfiles/files/8_Nikolajev.pdf
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