Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 373organ of Bellonci, frontal organ.frontal fissure (ARTHRO: Insecta) In Diptera, the line extendingfrom the crescent-shaped sclerite above the antennaeto the border of the mouth.frontal ganglion (ARTHRO: Insecta) The median ganglionabove the esophagus, in front of the brain, connected bynerves to the tritocerebral lobe on either side.frontal gland (ARTHRO: Insecta) In Isoptera, a large mediangland beneath the integument of the head in certain soldier-termites,opening through the fontanelle or frontalpore, which produces secretions.frontalia n. [L. frons, front] 1. (ARTHRO: Insecta) For Diptera,see frontal vitta. 2. (GNATHO) Paired sensory bristles on theanterior part of the head.frontal lobes (ARTHRO: Insecta) 1. In Psyllidae, two lobes orprotrusions divided by a suture in which an ocellus is situated.2. In Formicoidea, lateral projection of the frontal carina.frontal lunule (ARTHRO: Insecta) In Diptera, the lunar-shapedsclerite above the base of the antennae and below thefrontal suture.frontal membrane (BRYO: Gymnolaemata) In Cheilostomata,membrane of the frontal wall in autozooids.frontal orbit see facial orbitfrontal orbits see genovertical platesfrontal organ (ARTHRO: Crustacea) a. Sensory cells on theanterior surface of the cephalon of malacostracans; thehaft organ or frontal eye in non-malacostracans. b. TheBellonci organ of ostracods. see organ of Bellonci, frontaleye complex, x-organ.frontal plane A plane or section parallel to the body main axisand at right angles to the sagittal plane; horizontal plane.frontal plate (ARTHRO: Crustacea) In brachyuran Decapoda, amodified rostrum with a downward projecting processunited with the epistome.frontal plate of the tentorium (ARTHRO: Insecta) The plateformed by fused anterior arms of the tentorium.