Integrated taxonomy of three new species of Glyphiulus Gervais, 1847 (Diplopoda, Spirostreptida, Cambalopsidae) from Laos
Issued Date
2024-01-01
Resource Type
eISSN
02172445
Scopus ID
2-s2.0-85184465764
Journal Title
Raffles Bulletin of Zoology
Volume
72
Start Page
42
End Page
61
Rights Holder(s)
SCOPUS
Bibliographic Citation
Raffles Bulletin of Zoology Vol.72 (2024) , 42-61
Suggested Citation
Likhitrakarn N., Jeratthitikul E., Jirapatrasilp P., Wesener T. Integrated taxonomy of three new species of Glyphiulus Gervais, 1847 (Diplopoda, Spirostreptida, Cambalopsidae) from Laos. Raffles Bulletin of Zoology Vol.72 (2024) , 42-61. 61. doi:10.26107/RBZ-2024-0003 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/97213
Title
Integrated taxonomy of three new species of Glyphiulus Gervais, 1847 (Diplopoda, Spirostreptida, Cambalopsidae) from Laos
Corresponding Author(s)
Other Contributor(s)
Abstract
Three new species of the millipede genus Glyphiulus Gervais, 1847 are described and illustrated based on specimens collected from caves in Laos, namely G. pseudocostulifer, new species, from Oudomxay Province, G. steineri, new species, from Khammouan Province, and G. houaphanhensis, new species, from Houaphan Province. All of them belong to the javanicus-group, which share the unique structure of the first pair of legs in males and the carinotaxic formula of midbody rings. However, they differ from each other in the number of ommatidia, body colouration, the carinotaxic formula of the collum, as well as anterior and posterior gonopod structures. Mitochondrial COI sequences were used as DNA barcodes for species delineation, and were successfully obtained for two of the new species (G. pseudocostulifer, new species, and G. steineri, new species). Phylogenetic analyses revealed strong support for all examined Glyphiulus species, even for a pair of species which exhibited high morphological similarity, with mean uncorrected COI p-distances between Glyphiulus species ranging from 15–22%. Two additional Glyphiulus species are listed, but not described, as male material is lacking. One of them occurs in direct sympatry with G. houaphanhensis, new species. An identification key to the species of Glyphiulus so far recorded from Laos and a distribution map are also presented.