T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network


Shield bug 5th instar (Brown shield bug) Dictyotus caenosus

5th instar of Dictyotus caenosus (Brown shield bug) 

Shield bugs are often called Stink Bugs and get their common name from the foul-smelling fluids they exude when disturbed. Both adults and nymphs have large glands that discharge underneath the body. To survive, shield bugs require a supply of bacteria which they store in intestinal pouches. The nymphs obtain a lifetime supply from deposits made on and between the eggs by the adult female when she lays them.
Nymph sheild bugs go through 5 instar stages (moults) till adult.

Below are photos of the 5th instar of Dictyotus caenosus (Brown shield bug).