Die Hymenopteren-Gattungen Stenophasmus Smith, Monomachus Westw., Pelecinus Latr. und Megalyra Westw
Published in Berliner Entomologische Zeitschrift, in 1890, in volume 33, pages 197-250
Published in Berliner Entomologische Zeitschrift, in 1890, in volume 33, pages 280-284
Published in Berliner Entomologische Zeitschrift, in 1890, in volume 33, pages 347-392
Published in Berliner Entomologische Zeitschrift, in 1890, in volume 33, pages 403-404
Published in Berliner Entomologische Zeitschrift, in 1890, in volume 35, pages 141-302