Cover legend: Monoaminergic neuron clusters in the larval Drosophila brain. Green spots show octopaminergic/tyraminergic (bottom right) and dopaminergic (top left) cell clusters labeled with nlsGFP. Red, N-cadherin. Blue, Fas II and choline acetyltransferase. For more information, see the article by Honjo and Furukubo-Tokunaga, which appeared on pages 852–862 of the January 21, 2009 issue.