Published in Annals de la Société entomologique de Belge, in 1911, in volume 54, pages 461-464

Published in Annales de la Société Entomologique de Belgique, in 1911, in volume 55, pages 8-13

Published in Annales de la Societe Entomologique de Belgique, in 1911, in volume 55, pages 15-26

Published in Annales de la Société Entomologique de Belgique, in 1911, in volume 55, pages 39-78

Published in Annales de la Société Entomologique de Belgique, in 1911, in volume 55, pages 90-94

Published in Annales De La Societe Entomologique De Belgique, in 1911, in volume 55, pages 95-113

Published in Annales de la Société Entomologique de Belgique, in 1911, in volume 55, pages 132-133

Published in Annales de la Societe entomologique de Belgique. Bruxelles, in 1911, in volume 55, pages 134-144

Published in Annales De La Societe Entomologique De Belgique, in 1911, in volume 55, pages 145-164

Published in Ann. Soc. Entomol. Belg., in 1911, in volume 55, pages 184-189

Published in Annales De La Societe Entomologique De Belgique, in 1911, in volume 55, pages 231-255

Published in Annales De La Societe Entomologique De Belgique, in 1911, in volume 55, pages 278-287

Published in Annales de la Société Entomologique de Belgique, in 1911, in volume 55, pages 298-306

Published in Annales de la Société entomologique de Belgique, in 1911, in volume 55, pages 308-312

Published in Annales de la Société entomologique de Belgique, in 1911, in volume 55, pages 313-314

Published in Annales de la Société entomologique de Belgique, in 1911, in volume 55, pages 315-319

Published in Annales Societe Entomologique Belgique, in 1911, in volume 55, pages 320-324

Published in Annales De La Societe Entomologique De Belgique, in 1911, in volume 55, pages 370-395