This character varies from extremely smooth and shining in the southwest to strongly, dense-punctate and costate along the western edge of the High Plateau.

Both smooth and punctate specimens may be found at the same locales, including Ampotoampoto, Ejada, Tsihombe and Ambinanitelo.

The variation of this character indicates that although the two extremes are reproductively isolated by distance and geography, but are otherwise linked across their range by intermediate populations.

[1] As with most of the diversity of Meranoplus, nothing is known about the behavior or ecology of M. mayri except that its ground nests may be found in urban gardens, grasslands, and deciduous and spiny forests.

Although few collections have been made of this species in the High Plateau region, it is predicted that they may be found there as well.