O vidovom sostave dvukrylyh (Diptera) - ehntomofagov koroedov hvojnyh porod v Estonii.
1994
Ounap H.
The present paper is based on the material collected in 1973...1986 in 32 forest districts of 17 forestry enterprises of the Estonia and in some parks. The paper presents a list of predatory Diptera reared from spruce and pine bark inhabited by bark beetles, also collected from tree trunks and boreholes of bark beetles. The paper evaluates the number of Diptera and their hosts are marked on the basis of data of the author and literature. 26 species of predatory Diptera were found. 56 species of entomophages were found from the boreholes of Ips typographus, of them 15 species of Diptera. At the end of June and July of 1982...1985 larvae of Medetera spp. formed 40.7 of the all entomophages of Ips typographus and 67.1 of the predatory ones. 89.2 of the imagos reared from larvae of Medetera spp. found from the boreholes of Ips typographus belonged to the species of Medetera signaticornis Lw. This species is one of the most advantageous entomophages of Ips typographus in Estonia.
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