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Article
Published: 2016-06-28

The Westpalaearctic Lasius paralienus complex (Hymenoptera: Formicidae) contains three species

Senckenberg Museum für Naturkunde Görlitz, Am Museum 1, 02826 Görlitz, Germany.
104 route de Mounic, 33160 Saint Aubin de Médoc, France.
Hymenoptera numeric morphology-based alpha-taxonomy nest centroid clustering sister species endemic morphometry

Abstract

Application of Numeric Morphology-Based Alpha-Taxonomy (NUMOBAT) demonstrated the existence of three cryptic species within the Westpalaearctic Lasius paralienus species complex: L. paralienus Seifert, 1992, having a wider European distribution north to Sweden, L. casevitzi sp. nov., an endemic of Corsica, and Lasius bombycina sp. nov. from southeast Central Europe, the Balkans and Asia Minor. Hierarchical NC-Ward clustering and non-hierarchical NC-k-means clustering of 16 morphological characters resulted in 98.7% identical classifications within 76 examined nest samples of the three species. The classification error in 180 worker individuals was 0% in a linear discriminant analysis (LDA) and 1.3% in a LOOCV-LDA. Differential characters to other species groups and an identification key of the six European members of the Lasius alienus Förster species group are provided.

 

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How to Cite

SEIFERT, B., & GALKOWSKI, C. (2016). The Westpalaearctic <em>Lasius</em> <em>paralienus</em> complex (Hymenoptera: Formicidae) contains three species. Zootaxa, 4132(1), 44–58. https://doi.org/10.11646/zootaxa.4132.1.4