Published in Annales de la Societe Entomologique de Belgique, in 1906, in volume 49, pages 218-334

Published in Annales De La Société Entomologique De Belgique, in 1906, in volume 49, pages 368-378

Published in Annales de la Societe entomologique de Belgique. Bruxelles, in 1906, in volume 50, pages 12-13

Published in Annales de la Société entomologique de Belgique, in 1906, in volume 50, pages 97-100

Published in Annales de la Société Entomologique de Belgique, in 1906, in volume 50, pages 106-121

Published in Annales De La Societe Entomologique De Belgique, in 1906, in volume 50, pages 130-134

Published in Annales de la Société Entomologique de Belgique, in 1906, in volume 50, pages 137-144

Published in Annales De La Société Entomologique De Belgique, in 1906, in volume 50, pages 148-154

Published in Ann. Soc. Entomol. Belg., in 1906, in volume 50, pages 196-203

Published in Annales de la Société Entomologique de Belgique, in 1906, in volume 50, pages 204-214

Published in Ann. Soc. Entomol. Belg., in 1906, in volume 50, pages 254-270

Published in Ann. Soc. ent. Belg., in 1906, in volume 50, pages 284-308

Published in Annales de la Societe entomologique de Belgique. Bruxelles, in 1906, in volume 50, pages 395-404

Published in Annales de la Société Entomologique de Belgique, in 1906, in volume 50, pages 405-417