Détail de la référence


Le contact entre deux "bad species" Zygaena transalpina Esper, 1781 et Z. hippocrepidis Hübner, 1796. Deuxième partie : dans le sud-est de la France, à l'est du Rhône (Lepidoptera, Zygaenidae)

Auteur : Mazel (Robert)

Année de publication : 2009
Publication : Revue de l'Association Roussillonnaise d'Entomologie
Volume : XVIII
Fascicule : 3
Pagination : 127-147

Résumé :

The distinctive features of the genitalia and of the wing pattern of the two species are quantified so that the scale of values obtained, for the habitus, match a "melanisation index". It is then possible to define how the populations of south-eastern France are organised, to distinguish pure and hybrid populations, to compare their composition in different sites, etc... The acquired data are mapped, translated into series of histograms or into visual transects which make various results appear: no pure population of Z. hippocrepidis curtisi Tremewan exists in the Drome departement ; no character enables to separate Z. transalpina altamaritima Dujardin from Z. tr. alpina Boisduval ; the taxon Z. hippocrepidis provincialis Oberthur is highly individualised but some characters suggest a it is closer to Z h. curtisi ; the transition between the last two subspecies takes place over a short distance, whereas hybrid combinations between Z. transalpina alpina and Z hippocrepidis curtisi take place over more than 80 km in the Drome ... The study of the populations west of the Rhone is necessary to mature some of these findings and the first interpretations derived from them, which are given here as a conclusion