Published in Annales De La Société Entomologique De Belgique, in 1901, in volume 45, pages 32-54

Published in Annales De La Société Entomologique De Belgique, in 1901, in volume 45, pages 111-117

Published in Ann. Soc. ent. Belg., in 1901, in volume 45, pages 141-161

Published in Annales de la Société Entomologique de Belgique, in 1901, in volume 45, pages 173-189

Published in Annales de la Société Entomologique de Belgique, in 1901, in volume 45, pages 304-311