The data on the number of species of insects associated with various trees in Britain have been reanalyzed to factor out possible bias from phylogenetic effects. It was found that tree availability (range and abundance) continues to provide a good predictor (r = 0. 852) of insect-species richness, slightly better than straightforward cross-species analyses. Of the two components of tree availab...

This study is based on the Symphyta (Hymenoptera) material collected from Bingol and Diyarbakır provinces of Turkey in 2019.The present paper second part series papers investigating sawfly fauna Anatolian biogeographic region. The so far recorded 38 species extended to 58 species. Arge auripennis Konow, 1891, pallidinervis Gussakovskij, 1935, Dolerus hispanicus Mocsáry, 1881 Athalia dimidiata 1...

Monoctenus lechkhumensis sp.n. is described from Georgia, Dogurashi and compared to nipponicus Takeuchi, 1940.

Two sawfly species were established for the first time in Bulgaria: Gilpinia socia (Klug) (Hymenoptera: Diprionidae) and Hemichroa crocea (Geoffroy) Tenthredinidae). G. was found on Pinus sylvestris Plovdiv City, H. - Alnus glutinosa land of Iskra Village. The late-instar larvae collected reared Petri dishes laboratory conditions Forestry Protection Station Plovdiv. Seven female one male adult ...