Malaise's and Moericke's traps set in a mossy pine forest within the Berezinsky Biosphere Reserve have revealed 18 Pempilidae species and 44 Sphecidae species. The distribution of Pompilidae and Sphecidae in the forest was not uniform and dependent on the heterogeneity of the pine stand and the forest layer. Insects of both families were found to concentrate in the cutting, and Sphecidae, in addition, in the crown.