Resolving a century-old case of generic mistaken identity: polyphyly of Chitoniscus sensu lato resolved with the description of the endemic New Caledonia Trolicaphyllium gen. nov. (Phasmatodea, Phylliidae)

With every molecular review involving Chitoniscus Stål, 1875 sensu lato samples from Fiji and New Caledonia revealing polyphyly, the morphology from these two distinct clades was extensively reviewed. Morphological results agree with all previously published molecular studies and therefore Trolicaph...

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Bibliographic Details
Published in:ZooKeys 2021-08, Vol.1055 (2554), p.1-41
Main Authors: Cumming, Royce T., Tirant, Stephane Le, Büscher, Thies H.
Format: Article
Language:English
Subjects:
Analysis
Arthropoda
Hexapoda
Identification Key
Insecta
Invertebrata
Morphology
New Caledonia incl. Loyalty Islands
New combinations
New genera
Phasmida
Phylliidae
Phyllioidea
Phylogeny
Species
Taxonomic revision
Taxonomy
Zoology
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Summary:With every molecular review involving Chitoniscus Stål, 1875 sensu lato samples from Fiji and New Caledonia revealing polyphyly, the morphology from these two distinct clades was extensively reviewed. Morphological results agree with all previously published molecular studies and therefore Trolicaphyllium gen. nov. is erected to accommodate the former Chitoniscus sensu lato species restricted to New Caledonia, leaving the type species Chitoniscus lobiventris (Blanchard, 1853) and all other Fijian species within Chitoniscus sensu stricto. Erection of this new genus for the New Caledonian species warrants the following new combinations: Trolicaphyllium brachysoma (Sharp, 1898), comb. nov. , Trolicaphyllium erosus (Redtenbachher, 1906), comb. nov. , and Trolicaphyllium sarrameaense (Größer, 2008a), comb. nov. Morphological details of the female, male, freshly hatched nymph, and egg are illustrated and discussed alongside the Chitoniscus sensu stricto in order to differentiate these two clades which have been mistaken as one for decades.
ISSN:1313-2989
1313-2970
DOI:10.3897/zookeys.1055.66796