part_of mouthparts sclerite anterior conjunctival thickening HAO:0002072 The sclerite that is elongate and extends from the lateral margin of the prementum and the base of the lacinia towards the anteromedial margin of the mandible and the and the proximal margin of the labrum. hypopharyngeal rod interlorae labral tractor suspensor suspensory rod of the hypopharynx suspensory thickening