Genetic pairwise distance (%) of the COI gene sequences among the 17 tetragnathid species [Leucauge (5 species), Mesida (2 species), Opadometa (2 species), Tetragnatha (5 species) and Tylorida (3 species)] plus the two outgroups (Larinioides cornutus and Gasteracantha cancriformis). The distances were calculated by using the Kimura-two-model (Kimura, 1980).