Fig. 9. Micrographs of cryostat sections of brain from pharate adult M. sexta labeled with antiserum to LomTK. (A) Fibres in the upper division of the fan-shaped body of the central body complex (frontal section). Note also fibres in superior median protocerebrum (above central body). (B) Fibres in lower part of mushroom body calyx (large arrow) seen in frontal section. Also in the upper parts there are thinner LTKLI fibres (small arrows). (C) Antennal lobe with LTKLI fibres in all the glomeruli. Note also cell bodies (arrow) which are part of a cluster of about 30 neurons supplying LTKLI fibres to the glomeruli. (D) Also in the macroglomerular complex of the antennal lobe there are varicose LTKLI fibres. (E-G) Immunoreactive neurons in optic lobes (overview in G). (E) Large cluster of cell bodies at the anterior base of the medulla. (F) Fibres in a thin layer of the medulla. (G) An overview of the medulla (Me), lobula (Lo) and lobula plate (LP) is shown in horizontal section. Note immunoreactive fibres in medulla and lobula plate (arrows). Scale bars, 50 µm (A-E); 100 µm (G).