label: DNg_C; Part of comprehensive neck connective tracing, contact Connectomics Group Cambridge for more detailed information on descending/ascending neurons; OA-VUMd3?; Busch et al., 2009; FruM/OA neuron?; Certel et al., 2010; SEZ ventral median (VM) OA cluster; Monastirioti et al., 1995; Sinakevitch and Strausfeld, 2006