Fig. 16

Phylogenetic tree of the studied taxa, with the character state transformation of prosomal gustatory gland distribution and external modifications shown at the nodes. Species without external prosomal modifications are marked in bold. The prosoma is divided into five regions of gustatory gland distribution as shown in the schematics: 1, chelicerae; 2, before-eye region; 3, eye region; 4, space between both sides of inter-cheliceral-sclerite muscles (light blue) and anterior/posterior pharyngeal dilators (light/dark orange); 5, posterior to posterior pharyngeal dilators