Facial markings are indistinct or absent. The ears are long and hairless. Females have two pairs of mammae. Mirza is much larger than Microcebus. During the wet season it has a varied diet consisting of fruits, flowers, gums, insects, spiders, frogs, lizards, small birds, and eggs.
Males are solitary and seem to defend their core areas from other males.
However, a male's core area may overlap that of a female. Marking is accomplished through urination, salivation, and anogenital dragging. Gestation is 89 days, litter size is 2 young, and birth weight is 12 grams. It occupies a restricted area of humid forest and is threatened both by a long-term drying trend in the climate and by human destruction of the forests.