Rhyzobius chrysomeloides, the round-keeled Rhyzobius, is a species of beetle in the family Coccinellidae. It is found in most of Europe, North Africa and northern Asia.
Life History R. chrysomeloides is a predatory species, feeding on aphids. R. chrysomeloides can typically be found on various species of trees and garden shrubs, first being recorded in Britain in 1996 on a pine tree.
Description Adults reach a length of about . They have an elongate oval, elongate oval, distinctly flattened body. The pronotum is brown and the elytra are reddish with a black pattern. The antenna and legs are brown. R. chrysomeloides is visually similar to Rhyzoius litura, but can be differentiated by its broader prosternal keel and the darker, U-shaped markings on its elytra.
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