New records of insects associated with Araucaria trees: Phytophagous Coleoptera and Hymenoptera and their natural enemies

For the recently initiated programs of sustainable forestry with the Brazil ian pine, Araucaria angustifolia, knowledge of the insects associated with this tree is of paramount importance. In a forest reserve on the Serra Gera l of Rio Grande do Sul, Brazil, a three year monitoring was conducted. Fort y coleopteran and 5 hymenopteran species totaling about 6200 specimens were recorded, of which 19 and 4 taxa respectively were previously unknown to l ive on this conifer. They are the coleopterans Lobopoda dallieri (Alleculid ae), Taphroderes sahlbergi (Brentidae), Tithonus virescens (Cerambycidae), Plocamocera sp., Enoclerus sp., sp. indet. (Cleridae), Micromimus sp. (Curc ulionidae: Cossoninae), Corthylus papulans, Xyleborus catharinensis, Xylech inosomus sp. (Curculionidae: Scolytinae), Dilobitarsus quadrituberculatus, Semiotus intermedius, Ptesimopsia sp. (Elateridae), Eudircaea laticornis, M egapsilaphus sexnotatus (Melandryidae), cf. Copidita sp. (Oedemeridae), Aha sverus sp. (Silvanidae), Temnochila sp., sp. indet. (Trogositidae) and the hymenopterans Eubazus sp. (Braconidae), Ephialtes sp., Epirhyssa cf celaena , (Ichneumonidae) and Ophrynopus depressatus (Orussidae). Data on their lif e histories are provided, and also for the coleopterans Taurorcus chabrilla cii (Cerambycidae), Araucarius brasiliensis, Eurycornyophorus scabriculus ( Curculionidae: Cossoninae), Corthylus praealtus and C. rufopilosus (Curculi onidae: Scolytinae) which were already known to occur on Araucaria trees. T he results of our survey provide the first records for many insects, especi ally beetles, as belonging to the araucariofauna. Some of them can be consi dered potential pest species. Perspectives of applied forest entomology as well as biogeographic aspects are discussed.