Published in Entomologische Berichten Helder, in 1921, in volume 5, pages 298-300

Created: 2019-03-04, modified: 2019-03-04

Published in Entomologische Berichten Helder, in 1921, in volume 5, pages 300-301

Created: 2019-03-04, modified: 2019-03-04

Published in Entomologische Berichten Helder, in 1921, in volume 5, pages 330-338

Created: 2019-03-04, modified: 2019-03-04

Published in Entomologische Berichten Helder, in 1921, in volume 5, pages 345-348

Created: 2019-03-04, modified: 2019-03-04

Published in Entomologische Berichten Helder, in 1921, in volume 5, pages 348-351

Created: 2019-03-04, modified: 2019-03-04