New insights from biogeography, morphology and molecular biology: the species status of Acalles temperei Pericart, 1987 and Kyklioacalles navieresi (Boheman, 1837) (Curculionidae: Cryptorhynchinae)

Publication Type:Journal Article
:2006
Authors:P. E. Stueben, Astrin J. J.
Journal:Weevil News
Volume:33
Pagination:Unpaginated
Date Published:3rd
Type of Article:Article
:1615-3472
:Acalles parvulus, Acalles temperei, Kyklioacalles navieresi, Kyklioacalles roboris
:

Biogeographical and morphological arguments are presented that suggest the following synonymization: Acalles parvulus Boheman, 1837 = Acalles temperei Pericart, 1987. Comparing the aedeagi along a transect from Mont Pilat (Dep. Loire) to Mont Saint-Martin North of Grenoble (Dep. Isere), a cline becomes apparent that raises doubts about the species status of Acalles temperei. These results, obtained by comparative phenotypic examination, are corroborated in a preliminary set of molecular genetic analyses. The latter either hint the existence of a hybrid zone or indicate that Acalles parvulus and Acalles temperei constitute a single, geographically structured species. The molecular results for Kyklioacalles roboris (Curtis, 1834) and the recently resynonymized species Kyklioacalles navieresi (Boheman, 1837) are very different. DNA sequence analysis of the mitochondrial CO1 and 16S genes and of the nuclear 28S gene showed that Kyklioacalles navieresi and Kyklioacalles roboris likely represent two individual, but closely related species.

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