part of adult sternum adult sternum IX 9 Sternit 9th abdominal sternite 9th sternite 9th sternum Fig 20,21,22,24 Abbr: IX-S in ISBN:0-937548-00-6. Hypopygium IX Sternit Subgenitalplatte TGMA:0000598 TGMA:0000598 The sternum of abdominal segment IX. In male mosquitoes, a small sclerite continuous laterally with tergum IX. basal ring default_namespace hypandrium ninth sternite ninth sternum ninth tergite sternite of the ninth segment tergite 9 adult abdominal segment IX