part of synaptic neuropil domain haltere neuropil HTct fly_anatomy.ontology FBbt:00047138 VFB:FBbt_00047138 Dorsal portion of the metathoracic segment (T3) of the adult ventral nerve cord (Namiki et al., 2018). It is part of the upper tectulum (Court et al., 2020). Somatosensory neurons of the haltere terminate in parts of this neuropil (Tsubouchi et al., 2017). haltere tectulum upper tectulum tectulum of metathoracic neuromere tectulum subdivision