Mane (真似) means mimicry
ManeMane Musume was a Lemure sent by VesVes to fight the Sailor Senshi. She had the appearance of a monkey dressed in a green Sailor Senshi-esque costume, and could mimic most of their attacks. She appeared in Episode 25 of Sailor Moon Super S.
After extracting the dream mirror of a girl named Nanako, VesVes was attacked by the Sailor Senshi, so she summoned Manemane to fight them. Manemane mimicked Sailor Venus and Sailor Jupiter's attacks and ate Nanako's dream mirror, and began to imitate her. Rei transformed into Sailor Mars and used Burning Mandala on her, but it didn't work, as she was able to mimic the attack. However, when Sailor Mars used her new attack Mars Flame Sniper, she was unable to mimic and was hit by it. Sailor Chibi Moon called Pegasus with Twinkle Yell, and Sailor Moon destroyed Manemane with Moon Gorgeous Meditation.
ManeMane Musume had the ability to copy the abilities and face of the Senshi and perform their attacks with the same strength as their original abilities. She is also seen mimicking VesVes when she is first summoned, much to the latter's irritation.