26. The entomophages of the family Scelionidae (Hymenoptera, Platygastroidea) in the apple plantations of the Agricultural University – Plovdiv. I. General characteristics of the entomophages of the family Scelionidae, tribus Gryonini (subfamily Scelioninae).

In a research made in 2007, there were 8 species established of the Genus Gryon, 2 species of which – Gryon howardi (Mokrz. et Ogl.) and G. fasciatus Pries., were new to the fauna of Bulgaria; 4 species: G. exculptus (Först.), G. bolivari Giard, G. hungaricus (Sb.), and G. monspeliensis Pick., are new to the fauna of the fruit plantations in Bulgaria. The species of G. muscaeformis (Ne.) and G. misellum Halid. were new to the fauna of the apple plantations in the region of Plovdiv.