Neurosekretion of Brain and Brain- Connected Endocrin Glands in the Decticus verrucivorus (Orthoptera: Tettigonidae)

This morphologic and histologic study was performed to determine the types and places of the median and lateral neurosecretory cells in the pars intercerebralis (pic) area of protocerebrum in the brain of mature female decticus verrucivorus; corpora cardiac, corpora allata and nerve connections among corpora cardiaca, corpora allata and the brain. the obtained findings were compared with studies on other species of orthoptera ordo and pars intercerebralis median neurosecretion cell types were investigated. total staining was performed by using performic asit-victoria blue 4r (pavb) tecnique and pars intercerebralis median neurosecretion cells and corpora cardiaca were staining dark blue. occasionally, neurosecretory granuls were also seen in corpora allata. it was clearly observed that passing through the brain, axon bundles ascended from both median neurosecretion cell groups constituted a cross in ventral. four types of neurosecretion cells were determined in pars intercerebralis median group and were defined as type i, type ii, type iii, and type iv cells, respectively.