Histology of the brain of the larva of Chilocorus nigritus Fabr. (Coleoptera: Coccinellidae), with special reference to the fibre tracts

Summary

The finer anatomy of the brain of the larva has been studied. The protocerebrum consists of pons cerebralis, corpora ventralia, mushroom bodies and three optic lobes. The central complex is represented by the pons cerebralis and central body, and the latter is joined with the copora ventralia by fine fibre tracts. The anterior and posterior optic commissures join the inner optic lobes of the two sides. The antennary nerves arise from the deutocerebral lobes. The antennocerebral tract joins the deutocerebral and protocerebral lobes with each other. Tritocerebral lobes are small and a commissure joins the two tritocerebral lobes.