Cephaloleia crenulata is a species of beetle of the family Chrysomelidae. It is found in Ecuador.
Description Adults reach a length of about 3.9 mm. Adults are yellowish-brown, with antennomere 1 yellowish-brown, 2–10 darker and 11 dark basally and paler apically.
Etymology The species name is derived from Latin crenulatum (meaning minutely emarginate) and refers to the finely emarginate lateral margin of the pronotum.
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