part of hypocranium hypostomal suture Fig 34,35,37,38,39,40,42,44 Abbr: HyS in ISBN:0-937548-00-6. TGMA:0001198 TGMA:0001198 The sector of the subgenal suture between the postcoila and the posterior tentorial pit. In mosquito larvae, faint or undeveloped from the postcoila to near the point where the lateralia approach the anterolateral corner of the submentum, then distinct for at least a short distance posteriorly forming the border between the lateralia and the submentum; sometimes traceable to the posterior tentorial pit often faint or absent posteriorly. default_namespace maxillary suture premaxillary suture submental-postgenal suture anatomical line