Diversity and temporal variations of the Hemiptera Auchenorrhyncha fauna in the Ajaccio region (France, Corsica)
Résumé
During a one-year survey of the Auchenorrhyncha fauna in a maquis habitat of the Ajaccio region (Corsica), 37 species were listed including 3 alien species recorded in Europe in the last decades. The standard 658 bp mitochondrial COI barcode was obtained for 32 species, including 14 species never previously barcoded. Neighbor-Joining analyses confirmed the monophyly for all of them. However, comparisons with available sequences from the mainland Europe showed that 4 species presented a significant intraspecific divergence (>3%) whereas a reduced interspecific divergence was found for another set of species. Complementary studies are therefore necessary to better assess their taxonomic levels. Three species-Euscelis lineolata (Cicadellidae), Philaenus spumarius (Aphrophoridae) and Latilica maculipes (Issidae)-account for up to 74.3% of the total insects collected. Although phylogenetic and taxonomic interpretations using restricted sampling and COI sequences alone are not robust, the proportion of new sequences highlight the global lack of knowledge about the Auchenorrhyncha as a whole and the potentially presence of cryptic taxa in different clades. 2 Résumé. Diversité et variations temporelles de la faune Auchenorrhynque dans la région Ajacienne (Corse). Un suivi de la faune Auchenorrhynque dans
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