Neurosecretory system of the brain-corpus cardiacum complex in diapausing Tyria jacobaeae L. (Lepidoptera : Arctiidae)

15. Endocrine glands and hormones

“…In Lepidoptera the major release site for NSM appears to be the CA-CC complex, although earlier studies pointed to CA as the primary release site (Nishiitsutsuji-Uwo, 1961;Mitsuhashi, 1963;Ym & Chippendale, 1979 b Meóla & Meóla, 1983), whereas in another bombycoid, Mimas tiliae (Sphingidae) the CC is the major site of release, and the same applies to Pier is rapae (Papilionoidea-Pieridae), Tyria jacobaeae and Hyphantria cunea (Noctuoidea-Arctiidae) (Highnam, 1958;Kono, 1973; Melnikova & Panov, 1975;Philogène & Massalski, 1976). The CC nerves themselves can be release sites, since many varicose terminal branches have been identified running into the aorta (Copenhaver & Truman, 1986;Ichikawa, 1991).…”

Cerebral Neurosecretory Cells in the Millipede, Archispirostreptus syriacus, De Saussure (Diplopoda, Spirostreptiadae)

“…Similarly, Philogene and Massalski (1976) described, in the neurosecretory cells of the pars intercerebralis of the moth Tyria, "amorphous and strongly osmiophilic masses" as well as "myelin-like p a r t s " associated with t h e neurosecretory granules. It appears that there are several stages in the degradation of the secretory granules and the lysosomal system seems to be involved in the process Steel 1977, Diirnberger andPohlhammer 1978).…”