Palaeophylloxera nov gen., the first fossil specimen of the family Phylloxeridae (Hemiptera, Phylloxeroidea); Lower Miocene of Spain

A fossil alate aphid from the Lower Aragonian (Lower Miocene) deposits of R ubielos de Mora (Teruel province) in eastern Spain is described as Palaeoph ylloxera seilacheri nov, gen. and sp. It is the first fossil specimen descr ibed within the Family Phylloxeridae. The principal differences between thi s genus and other representatives of the Phylloxeridae (and also the extinc t Elektraphididae) are the apparent presence of an oblique vein on the hind wing, the presence of distinctly visible transverse striae on antennal seg ment III, and the peculiar venation on the fore wings.