Studies on the neuro-endocrine complex of Bagrada hilaris Burm. (Hemiptera: Pentatomidae).

Abstract

Bagrada hilaris Burm., a common pest of cruciferous plants has been studied for the distribution and types of neurosecretory cells (NSC), the neurosecretory pathways (NSP), storage organs and the endocrine glands in detail using histological and in situ staining techniques. Pars intercerebralis of the brain consists of two groups of NSC on each lobe-median and lateral group consists of different types of NSC. The tritocerebrum of brain also contains some neurosecretory cells. The sekretion (NSM) of the median group is carried to the aorta by NCC I which serves as the neurophämal organ for this sekretion whereas the NSM from the lateral cells is carried to the corpora cardiaca by NCC II, which functions as the neurohämal organ for this material. Two NSC similar to the median cells are observed in sub-oesophageal ganglion. The sekretion of these cells is transported to the aorta. The histological details of endocrine glads i.e. CC and CA, is also discussed. Their association with each other and NSC is described.