New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10402739" target="_blank" >RIV/00216208:11310/19:10402739 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=omufIjoG3W" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=omufIjoG3W</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3897/zookeys.879.37721" target="_blank" >10.3897/zookeys.879.37721</a>
Alternative languages
Result language
angličtina
Original language name
New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia
Original language description
Two new species of the southern African genus Xiphoscelis Burmeister, 1842 are recognised and described, X. braunsi sp. nov. from the Eastern and Western Cape Karoo (South Africa) and X. namibica sp. nov. from the Huns Mountains of southern Namibia and adjacent ranges in South Africa. These were previously overlooked and grouped together with X. schuckardi Burmeister, 1842, but further material and more in-depth analyses have now revealed their clear separation on the basis of key diagnostic features, including clypeal structure, metatibial spur development and aedeagal shape. The densely and coarsely costate elytral structure and the black to brown colour of these species are symplesiomorphies shared with a number of the most primitive genera among the African Cetoniinae. However, these characters also reflect the convergent adaptation to hot and arid conditions they share with several other species occurring in this region. Phylogenetic relationships of the genus with other Cetoniinae are explored using the larval characters highlighted in the description of the 3rd instar larva of X. braunsi sp. nov. The extraordinary hypertrophy observed in the male metatibial spur of species in this genus, and particularly in X. schuckardi, appears to represent a defence mechanism against potential predators on the ground, apart from playing a role during mating.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ZooKeys
ISSN
1313-2989
e-ISSN
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Volume of the periodical
October
Issue of the periodical within the volume
879
Country of publishing house
BG - BULGARIA
Number of pages
33
Pages from-to
57-89
UT code for WoS article
000489615100004
EID of the result in the Scopus database
2-s2.0-85073557764