1.
Three new genera of ants from the Dutch East Indies.
2.
Descriptions of new ants, chiefly from Waigeu Island, N. Dutch New Guinea.
Formicides des collections de S.A.R. le Prince Léopold de Belgique. Voyage aux Indes Orientales, 1932.
The ants of Japen Island, Dutch New Guinea (Hym., Formicidae).
De mierenfauna van België (Hymenoptera: Formicidae).
Zur Kenntniss der Ameisen und Ameisengäste von Luxemburg.
Nederlandsche Adventief-mieren.
Studies on the fauna of Curaçao, Aruba, Bonaire and the Venezuelan islands: no. 14. Ants from the Leeward group and some other Caribbean localities.
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7.
8.
Les fourmis de Belgique.
The ants (Hym., Formicidae) of Waigeu Island, North Dutch New Guinea.