thoracic seta seta 1-T Fig 66,67,68,69,70,71,72 in ISBN:0-937548-00-6. TGMA:0001797 TGMA:0001797 The seta borne nearest the dorsal midline of the metathorax; the positions of the setae 1-, 2- and 3-P are usually close-set in a series, 1-P is interpreted as having the most posterior and/or mesal position of the three. anterior sub-median thoracic hair default_namespace inner sub-median prothoracic hair large dorsal hair