Subtribe Macromina

Macromina is a subtribe of flower chafers within the tribe Cetoniini (Subfamily Cetoniinae, Family Scarabaeidae, Order Coleoptera). Members of this subtribe are distributed primarily in Africa and parts of Asia, inhabiting forested and woodland environments.

Beetles in Macromina are generally medium- to large-sized and robust, with the oval, convex body shape typical of flower chafers. The dorsal surface is often smooth and moderately glossy, sometimes displaying metallic green, bronze, or coppery reflections, though some species exhibit more subdued coloration. Elytra are well developed and may show fine punctation or subtle sculpturing.

As with other cetoniines, members of this subtribe possess the characteristic lateral elytral notch, allowing them to extend their hind wings for flight without fully lifting the elytra. This adaptation enables strong and agile daytime flight.

Adults are typically diurnal and are commonly found visiting flowers, tree sap flows, or ripe and fermenting fruits. They feed on nectar, pollen, sap, and other sugary plant exudates, potentially contributing to pollination.

Larvae are typical C-shaped scarab grubs, developing in decaying wood, leaf litter, compost, or soil rich in organic matter. They are saprophagous and play an ecological role in nutrient recycling.

The life cycle follows complete metamorphosis: egg, larva, pupa, and adult, with development influenced by environmental conditions.

Subtribe Macromina represents a distinctive lineage of flower chafers characterized by robust form, active daytime flight, and ecological association with flowers and decomposing organic matter.