Fauna insectorum Helvetiae. Hymenoptera. Fam. Diploptera Latr. (Vespida aut.)
Schaffhausen, Buchdruckerei von Friedrich Rothermel, 1887 [i.e. 1887-1897]
1887
BHL-SIL-FEDLINK
Copyright Status:
Public domain. The BHL considers that this work is no longer under copyright protection.