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24 January 2023 Recovery of the family status of Pericambalidae Silvestri, 1909, stat. nov. (Diplopoda: Spirostreptida: Cambalidea), with a revision of the genera and species from China
Xuan-Kong Jiang, William A. Shear, Li-Ping Ye, Hui-Ming Chen, Zhi-Cai Xie
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Abstract

The millipede subfamily Pericambalinae Silvestri, 1909 is poorly understood and the taxonomic status remains controversial. Pericambalinae was regarded as either a subfamily of Cambalopsidae or an independent family. To address this issue, we conducted a molecular phylogenetic analysis and a morphological revision, and the genera and species from China are also revised. The results support the recovery of the family status, Pericambalidae, stat. nov. The morphological differences between Bilingulus Zhang & Li, 1981 and Parabilingulus Zhang & Li, 1981 are shown to be caused by post-embryonic development (anamorphosis and non-systemic metamorphosis) and both of these should be junior synonyms of Pericambala Silvestri, 1909 (Pericambala = Bilingulus, syn. nov. = Parabilingulus, syn. nov.). Three new combinations are proposed: Pericambala simplicia (Mauriès & Nguyen Duy-Jacquemin, 1997), comb. nov., Pericambala aramula (Zhang & Li, 1981), comb. nov. and Pericambala sinica (Zhang & Li, 1981), comb. nov. The mature specimens of Pericambala simplicia, comb. nov. and Pericambala aramula, comb. nov. were collected from the type localities and are described for the first time. A new species, Pericambala cordata, sp. nov. is described. After revision, Pericambalidae contains two genera and six species with one genus and four species recorded from China. Due to a deficiency in outgroup sampling, the phylogenetic status of Pericambalidae in the suborder Cambalidea remains uncertain. Variation of the gnathochilarium in Cambalidea is discussed and a key to the species of Pericambala in China is also provided. This research lays a foundation for further revision of Cambalidea in the future.

ZooBank: urn:lsid:zoobank.org:pub:BDA46BCE-102B-45FE-A963-47F029A09E76.

© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing.
Xuan-Kong Jiang, William A. Shear, Li-Ping Ye, Hui-Ming Chen, and Zhi-Cai Xie "Recovery of the family status of Pericambalidae Silvestri, 1909, stat. nov. (Diplopoda: Spirostreptida: Cambalidea), with a revision of the genera and species from China," Invertebrate Systematics 37(1), 78-100, (24 January 2023). https://doi.org/10.1071/IS22044
Received: 29 August 2022; Accepted: 7 November 2022; Published: 24 January 2023
KEYWORDS
anamorphosis
diversity
millipede
new combination
new species
non-systemic metamorphosis
synonyms
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