[1][2] Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Stegonotus.

The specific name, aplini, is in honor of Australian herpetologist and mammalogist Kenneth Peter "Ken" Aplin.

[3] The specific name, derooijae, is in honor of Dutch herpetologist Nelly de Rooij.

[4] The specific name, diehli, is in honor of German missionary Wilhelm Diehl (1874–1940), who collected herpetological specimens in New Guinea.

[6] The specific name, poechi, is in honor of Austrian ethnologist & anthropologist Rudolf Pöch.