Dictionary Of Invertebrate Zoology - L

L labella pl. of labellum labellar abductor apodeme (ARTHRO: Insecta) In Diptera, a small cuticular process below the inner basal margin of each labellum, where the labellar abductor muscle attaches. labellar basal sclerites (ARTHRO: Insecta) In Diptera, ventral sclerites in the membranous articulation | L labella pl. of labellum labellar abductor apodeme ARTHRO Insecta In Diptera a small cuticular process below the inner basal margin of each labellum where the labellar abductor muscle attaches. labellar basal sclerites ARTHRO Insecta In Diptera ventral sclerites in the membranous articulation between the prementum and the labella of the labium basal sclerite. labellar mesial sclerite ARTHRO Insecta In Diptera two narrow sclerotized strips on the inner surface of each labellum mesial sclerite. labellar sclerite ARTHRO Insecta In Diptera one of several cuticular plates of each labellum the prominent basal sclerite the furca of the labellum. labellum n. pl. -la L. dim. labrum lip ARTHRO Insecta One of variously expanded apexes of the labium the bouton or flabellum of bees. labial a. L. dim. labrum lip Pertaining to lip or labium. labial area MOLL Gastropoda The flattened or callus-coated surface extending from inner lip of the shell. labial disc NEMATA A circular elevation of cuticle surrounding the oral opening perioral disc. labial glands ARTHRO Insecta Salivary glands in the majority of insects situated below the anterior part of the alimentary canal ducts originating from these glands unite into a common duct salivary canal which opens near the base of the labium or hypopharynx. labial gutter see premental gutter labial kidneys see labial nephridia labial lumen see premental gutter labial mask ARTHRO Insecta A modification of the labium of dragonfly larvae in which the pre- and post-mentum are Online Dictionary of Invertebrate Zoology 501 elongated and the palps modified into grasping organs for catching prey. labial nephridia ARTHRO Insecta Tubules in the head of Collembola and Thysanura whose terminal sac may play some excretory role. labial palp palpus pl. -pi 1. ARTHRO Insecta One of a pair of small feelerlike structures borne on the labium. see maxillary palp. 2. MOLL Bivalvia One of 4 structures 2 on each side of the mouth derived from the velum by which .