part of larval gnathal appendages larval clypeolabral ridge Fig 35,37,38,39,41 ClR in ISBN:0-937548-00-6. In most insects, the internal ridge associated with the clypeolabral suture when this suture is not entirely membranous. In mosquito larvae, apparently normally or always continuous in association with the full length of the clypeolabral suture between the apices of the opposite clypeolabral straps; generally appearing slightly to much darkened partially because the observer usually sees two layers of cuticle (this ridge and the overlapping part of the clypeus) at once. TGMA:0001097 TGMA:0001097 clypeolabral inflection default_namespace