Language: Bulgarian with extended English summary (50 pp.)
The present volume of Fauna Bulgarica summarizes original data on one of the taxonomically most difficult Hymenopteran families, from a region which has never been reviewed so far. In total, 178 species belonging to 52 genera and 4 subfamilies are considered. The keys and figures are mostly original, all translated into English and hence fully usable to the Western reader, which in itself is a precedent within Fauna Bulgarica. All species descriptions are made on the basis of material originating from Bulgaria. Richly illustrated, contains also an extensive bibliography from the area considered. Bilingual, main text in Bulgarian with all keys, distributional and ecological data translated into English (60 pages English summary), all figure captions with Latin species names.