The male from Córdoba identified as I. nigromaculatus in Slater and Wilcox (1969) correspond to I. nigromaculatoides Dellapé & Melo 2022
The female from Obeia Negra, identified as I. nigromaculatus in the inventory from Moconá Provincial Park (Misiones, Argentina) by Dellapé et al. (2015) is a misidentification, It correspond to I. nigromaculatoides Dellapé & Melo 2022