Lateral view of three-dimensional reconstruction of visual neuropil 1. A, all reconstructed cells of all six neuron types shown; dorsal is up. B, A1 neurons omitted, thus subdivision of neuropil becomes visible; note D5 neurons mainly in right hemineuropil. C, A1 and D5 neurons omitted; note D4 neurons occur in both hemineuropils at once. D, A1, D4 and D5 neurons omitted; note D1, D2 and D3 neurons build two hemineuropils. E–J, distribution of different cell types separately within neuropil. D, dorsal; L, left; R, right; V, ventral.