A neurosecretory center of the insect brain, located along the anterior midline[wiktionary]. A medial cleft or depression dividing the left and right protocerebrum and containing numerous large and small somata of neurosecretory and neuromodulatory neurons[FBbt]. [ http://en.wiktionary.org/wiki/pars_intercerebralis http://flybrain.uni-freiburg.de/Flybrain/html/terms/terms.html ]