Following the recent reclassification of the Palaeotropic xyleborine genera (Hulcr and Cognato in press), additional species are transferred to correct genera or synonymized based on analysis of their morphological characters. The following species are given new combinations: Debus amphicranoides (Hagedorn), comb. n., Debus birmanus (Eggers, 1930), comb. n., Debus dolosus (Blandford, 1896), com...

Variability of terry flowers in buttercup Ranunculus acris from different populations demonstrates the anthropogenic impact on environment. Schoolchildren carried out training works analyzing frequency occurrence trait double a flower North-West Region Russia. The data obtained made it possible to discuss questions about mechanisms action environmental pollution by surfactants and unsaturated h...