Vertical Distribution of Species of the Subfamily Aphidiinae (Hymenoptera: Bracondae) from the Southwestern Bulgaria

The vertical spreading of some species of the subfamily of Aphidiinae (Braconidae) from Southwest Bulgaria was investigated during the period 2002 – 2005. The research was carried out for four out of the six vegetation zones which are typical for this region: Xerothermic oak woods, Mesophyll oak woods, Beech woods, Coniferous woods, Subalpine sparse woods.