Cephaloleia thiemei is a species of beetle of the family Chrysomelidae. It is found in Argentina and Brazil (Amazonas) and Ecuador.
Adults reach a length of about 3.8âÂÂ4.2 mm. Adults are yellowish with darker markings. The legs are reddish-yellow and the antennae are black (except antennomeres 1âÂÂ3 or 1âÂÂ4, which are reddish). The head, pronotum and scutellum are black and the elytron has a darkened suture and transverse black macula apically.