Durch Protophytobia cupressorum gen. nov., sp. nov. (Agromyzidae,Diptera) verursachte Markflecke in einem Holz von Juniperoxylon aus dem Tertiär von Süd-Limburg (Niederlande) und der Nachweis von Markflecken in einer rezenten Callitris-Art

From a cupressaceous wood described by Kräusel & Schönfeld (1974) of the Tertiary of South-Limburg (Netherlands) Greguss (1970) selected such pieces showing remains of insect food. In a recent Callitris species from Australia he found the some phenomenon (1970). Indeed Greguss considered these phenomena as a natural specific wood element. Really these are pith flecks are caused by a cambium-mining insect. Both are described in the present paper. I name the pith flecks in the fossil coniferous wood of South-Limbourg Protophytobia cupressorum gen. nov., sp. nov. Under such name is considered an insect only represented by their characteristic food channals. In living angiospermous woods Phytobia Lioy (Agromyzidae, Diptera) is the only genus hitherto known. In coniferous woods recent species are unknown. The food channals in conifers in great part closed by changed tracheids.