show Abstracthide AbstractGrapevine phylloxera (Daktulosphaira vitifoliae) is an invasive pest species with worldwide economic importance.It remains a major constraint for viticulture imposing the grafting of V. vinifera and quarantine regulations in areas (e.g. Australia) where varieties are predominantly grown own-rooted. In order to identify the array of expressed genes under different environmental conditions and to provide insights into the evolution and genetic bases of specific aphid and phylloxera life-traits, we performed a first characterization of phylloxera transcriptomes.