Stage 11

BPLG: basal procephalic cluster of longitudinal glia precursors

DPSG: dorsal protocerebral cluster of surface glia precursors

VPSG: ventral protocerebral cluster of surface glia precursors

D/T: fiber tract founder cluster at the deutero- and tritocerebrum

ol: optic lobe

P3m, P21: fiber tract founder clusters of the protocerebrum