Summary of the classification of dopaminergic neurons present in the larval central brain at L3, according to anatomical and lineage relationship criteria. (A) A cartoon depicting a dorsal view of a L3 larva central brain showing cell body locations and neurite projection patterns of the different types of DA neurons. For simplicity, just one neuron per cluster and per brain hemisphere is shown. The cartoon does not pretend to precisely reproduce the innervation pattern of every type of DA neuron, but just gives a general description. (B) Table showing the distribution of DA neurons in different NB lineages at different times during development. The lineage harboring Otd+ DA neurons is highlighted in blue. DA, dopaminergic; DL, dorso lateral; DM, dorso medial; L, instar larval stage; NB, neuroblast; PPL, protocerebral posterior lateral.