Protaetia affinis is a species of beetle of the family Scarabaeidae.

Distribution

It is distributed across Southern and Central Europe. It prefers continental climate. Adults first appear in early spring and remain active through summer.

Appearance

Protaetia affinis is usually 25–30 mm long, with a thick-set body. Both sides of its body are usually metallic emerald, however blue, violet, red, black and bicolor variations have been described as subspecies. The elytra have very small punctures, and no horizontal striae. The legs are also green, with white stripes.

Lifestyle

Females lay clutches of 4-7 eggs. Larvae develop in cavities in tree branches, where they feed on decaying plant matter. Adults feed on sap from trees, seeming to prefer fruit trees. Occasionally they can be found on flowering plants.