Lactobacillus terrae is a later heterotypic synonym of Lactobacillus metriopterae.

Lactobacillus metriopterae and Lactobacillus terrae are closely related, and they share 99.5 % 16S rRNA gene sequence similarity, 98.4 % pheS gene sequence similarity, 99.6 % rpoA gene sequence similarity, 97.9 % average nucleotide identity value and 81.3 % in silico DNA-DNA hybridization value, showing that they have the same taxonomic position. L. terrae should be reclassified as L. metriopterae. L. terrae is a later heterotypic synonym of L. metriopterae.