Arnoldius valid
Dubovikoff, D. A. 2005a. The system of taxon Bothriomyrmex Emery, 1869 sensu lato (Hymenoptera: Formicidae) and relatives genera. [In Russian.]. Kavkazskii Entomologicheskii Byulleten 1:89-94.   131153

Arnoldius flavus valid Australia (Western Australia). Australasia.
Crawley, W. C. 1922e. New ants from Australia (concluded from vol. ix. p. 449). Annals and Magazine of Natural History (9)10:16-36.   123876

Arnoldius pusillus valid Australia (New South Wales). Australasia.
Mayr, G. 1876. Die australischen Formiciden. Journal des Museum Godeffroy 12:56-115.   127196

Arnoldius pusillus aequalis valid Australia (Victoria). Australasia.
Forel, A. 1902j. Fourmis nouvelles d'Australie. Revue Suisse de Zoologie 10:405-548.   125129

Arnoldius scissor valid Australia (Western Australia). Australasia.
Crawley, W. C. 1922e. New ants from Australia (concluded from vol. ix. p. 449). Annals and Magazine of Natural History (9)10:16-36.   123876