This is the Lychee stink bug, the bane of many farmers, look for them as they infest trees like Longan and Lychee trees and suck the sap.
A great place to find these are in Tai Po Kau nature reserve.
Be careful, as they can release a toxic chemical out their bum...and this can hurt and cause a blister, and hence their other name...."the blister bug"...
These are the colourful juveniles. The adults are almost uniform in appearance and quite drab by comparison.
Fascinating fact: The females always lay exactly 14 eggs!
Their name comes from their foul smelling, and long lasting excretion, to ward off predation.
Here we have a couple of adults...
