A systematic and synonymic list of the Lycaenidae (part 2) of Western Palearctic butterflies hyperlinked to the original descriptions (Lepidoptera, Papilionoidea)
Submitted: 12.ix.2026 | Accepted: 15.ix.2026 | Published online: 30.ix.2026.
DOI: 10.5281/zenodo.22302023
Introduction
The present paper deals with the classification of the West Palaearctic species of the subfamily Polyommatinae (Lycaenidae). This subfamily is subdivided into several subtribes, following an arrangement that differs from that adopted in most recent studies on lepidopteran phylogeny, which recognise only the subtribe Polyommatini for the West Palaearctic fauna. This approach has been adopted in order to provide a more coherent framework for the relationships among the various monophyletic groups.
Several nomenclatural issues, including those concerning Maculinea/Phengaris and Pseudophilotes/Palaeophilotes, had to be addressed and resolved. In dealing with these issues, particular emphasis was placed on nomenclatural and taxonomic stability, which was considered the primary criterion for the classification adopted here.
In most cases, the external morphology (habitus) allows the reliable identification of the species included in these groups. However, examination of the genitalia remains necessary in some cases to distinguish closely related taxa, such as Cupido alcetas and Cupido decolorata, or among taxa belonging to the Pseudophilotes baton-complex.
Despite the considerable progress made in recent years, several taxonomic and systematic issues remain unresolved. Further phylogenetic studies will be necessary to clarify the specific or subspecific status of several taxa and to establish a more satisfactory generic classification. In particular, for some genera or species groups with a worldwide distribution that are treated in the present work, a reliable classification can only be established through a comprehensive study including all species of the group.
In this context, regular updates to a comprehensive systematic and synonymic reference are essential. A dynamic, continuously maintained reference offers clear advantages over fixed, paper-based publications, which cannot be revised once published and may rapidly become outdated as new taxonomic and phylogenetic insights emerge.
Tribe Polyommatini Swainson, 1827  |
| [ORIG] |
Code: Polyommatidae Swainson, 1827. Phil. Mag., n.s. 1(3): 187. |
| |
Polyommatus Latreille, 1804. |
Conclusion
This synonymic list offers a foundation for the taxonomy of Western Palearctic Lycaenidae.
By linking each name to its original description, it enhances transparency, accessibility, and historical accuracy. However, the list is not yet complete, and gaps remain in both hyperlinks and taxonomic data. Researchers, lepidopterists and enthusiasts are warmly invited to contribute by submitting missing hyperlinks, overlooked synonyms, or other relevant information.
Author contribution
Michel Taymans: conceptualisation, analysis, visualisation, writing - original draft, writing – review and editing.
Sylvain Cuvelier: analysis, validation, visualisation, writing – review and editing.
|