Cephaloleia amba is a species of beetle of the family Chrysomelidae. It is found in Colombia, Ecuador and Peru.
Description Adults reach a length of about 4.9–5.6 mm. The head, scutellum and pronotum (except the lateral margin) are black and the elytron is pale yellow with a black irregular transverse band and the apical half (except the lateral and apical margins) black.
Biology The hostplant is unknown, but adults have been collected on Costus species.
Etymology The species name is derived from Greek ambon (meaning edge) and refers to the pale flange of the pronotum and elytra.
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