part of adult tergum VIII sternum VIII basolateral seta Fig 27 Abbr: BLS in ISBN:0-937548-00-6. In female mosquitoes, a small seta which may be present on either anterolateral corner of tergum VIII or sternum VIII. Occasionally replaced by a small bulla. Campaniform sense organ? May function in monitoring the degree of retraction of abdominal segment VIII. TGMA:0000621 TGMA:0000621 default_namespace compound organ component