Holmgren: hymenoptera. i6i 



45. B. nivalis Dahlb. 



Thoms. Hymenopt. Scand. II 35, 13. 

 Waigatsch: Cap Grebenij. 



46. B. lapponicus Fabr. 

 Thoms. Hymenopt. Scand. II 41, 20. 



-^op. 



Entovi. Tidskr. Arg, 4, H. 3 (1883). 



