Ocnosispa conicicollis is a species of beetle of the family Chrysomelidae. It is found in Brazil (Amazonas, Minas Gerais, Santa Catarina, São Paulo).
Adults are elongate, flattened along the suture and bright rufous. Three longitudinal stripes on the thorax and the elytra are dark metallic green, the latter each with eight bright rufo-fulvous spots.
No host plant has been documented for this species.