Mecyclothorax laevilateralis Perrault 1989

Mecyclothorax laevilateralis is a species of ground beetle in the subfamily Psydrinae. It was described by Perrault in 1989.

This species has been recorded from 900–1100 m elevation on Mont Teatara, Tahiti Iti. All specimens with ecological data have been associated with moss-covered trunks or horizontal logs, with collections made by beating small trunks or through application of pyrethrin fog to downed logs.