Beitrag zur Bienenfauna von Paraguay. (Hym.)
Published in Deutsche Entomologische Zeitschrift, in 1909, in volume 1909, issue 2, pages 227-237
Date published:1909
Published in Deutsche Entomologische Zeitschrift, in 1909, in volume 1909, issue 2, pages 227-237
Date published:1909