Key to the Indian species of aeneicollis group

1. Mesometasternal process not projected beyond mesocoxae; serration on lateral margin of pronotum, developed at anterior half, smooth at posterior half; punctation on pronotal surface relatively sparse and fine; vertex sparsely punctate; pygidium of characteristic shape (Fig. 17); apical process of left paramere relatively raised (Figs. 45, 57)..... M. aeneicollis Bates, 1891

– Mesometasternal process projected beyond mesocoxae; serration on lateral margin of pronotum, developed entirely; punctation on pronotal surface dense and rugose; vertex densely punctate; pygidium of characteristic shape (Fig. 18); apical process of left paramere slightly raised (Figs. 46, 58)............................................ M. cuprescens Blanchard, 1871