干旱区生态环境知识资源中心(Arid): New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia

Arid

DOI	10.3897/zookeys.879.37721
	New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia
	Perissinotto, Renzo 1; Sipek, Petr 2
通讯作者	Perissinotto, Renzo
来源期刊	ZOOKEYS
ISSN	1313-2989
EISSN	1313-2970
出版年	2019
期号	879 页码:57-89
英文摘要	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.
英文关键词	Afrotropical region fruit chafers identification key immature stages life cycle Succulent Karoo taxonomy Xiphoscelidini
类型	Article
语种	英语
国家	South Africa ; Czech Republic
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000489615100004
WOS关键词	PHYLOGENY
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219359
作者单位	1.Nelson Mandela Univ, Sch Environm Sci, POB 77000, ZA-6031 Port Elizabeth, South Africa; 2.Charles Univ Prague, Dept Zool, Vinicna 7, CZ-12844 Prague 2, Czech Republic
推荐引用方式 GB/T 7714	Perissinotto, Renzo,Sipek, Petr. New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia[J],2019(879):57-89.
APA	Perissinotto, Renzo,&Sipek, Petr.(2019).New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia.ZOOKEYS(879),57-89.
MLA	Perissinotto, Renzo,et al."New species of Xiphoscelis Burmeister, 1842 Coleoptera, Scarabaeidae, Cetoniinae) from arid regions of South Africa and Namibia".ZOOKEYS .879(2019):57-89.