title: FLIGHT PHENOLOGY OF VESPID WASPS (HYMENOPTERA, VESPIDAE) IN NORTHERN MONGOLIA
abstract: Flight phenology of forty-one vespid species were determined in northern Mongolia, using published data and our own samples. The studied species were divided into four phenological groups (summer species, late-summer species, summer-early autumn species and multi-seasonal species) depending on overlapping periods of the flight. Generally, flight phenology of vespid wasps in northern Mongolia is characterized as short lasting (50-150 days) between early May and late September, and mainly related 
journal: Proceedings of the Mongolian Academy of Sciences