part of cephalothorax cephalothoracic seta TGMA:0001001 TGMA:0001001 Thirteen pairs of setae occur on the cephalothorax, three on the lateralia of the head, four on the prothorax,two on the mesothorax and usually three, sometimes four, on the metathorax. The setae of this area were formerly designated with a number connected by a hyphen to the suffix "CT". default_namespace seta