Stärcke, A. 1934. Un nouveau sous-genre de Camponotus (Hymenoptera Formicidae) de la Malaisie avec description de formes nouvelles, récoltées par M. F. G. Nainggolan. Zoologische Mededelingen (Leiden) 17:20-30. PDF

Vecht, J. 1957. On some Hymenoptera from the collection of Guérin-Méneville in the Leiden Museum. Zoologische Mededelingen (Leiden) 35:21-31.

Dorow, W. H. O.; Kohout, R. J. 1995. A review of the subgenus Hemioptica Roger of the genus Polyrhachis Fr. Smith with description of a new species (Hymenoptera: Formicidae: Formicinae). Zoologische Mededelingen (Leiden) 69:93-104. PDF

Boer, P. 2003b. First description of the worker caste of Lasius viehmeyeri Emery (Hymenoptera: Formicidae). Zoologische Mededelingen (Leiden) 77:321-323. PDF

Kohout, R. J. 2008b. A new Polyrhachis (Myrma) vestita-group species from Sulawesi (Hymenoptera: Formicidae: Formicinae). Zoologische Mededelingen (Leiden) 82:297-302. PDF

Boer, P. 2008. Plagiolepis obscuriscapa Santschi, 1923, a junior synonym of Plagiolepis pygmaea (Latreille, 1798) (Hymenoptera: Formicidae: Formicinae) and the use of pigmentation as discriminating character in ant taxonomy. Zoologische Mededelingen (Leiden) 82:485-488. PDF