Venom
Bullant -
Myrmecia 

Vv

Most types of ants, wasps and bees have some sort of stinger in their tails (abdomen) with a sac of venom at its base.  The purpose of this venom is often to paralyse prey that will later be fed to their larvae (pronounced larvee).  

Bullants are colonial insects which are famous for their courage in standing up to intruders many times their own size.  They are also famous for their extremely painful stings which come from well-developed venom sacs.  In addition to the stings they can deliver a powerful bite from their huge, spiny jaws.  It is perhaps surprising then, to learn that such a well-armoured creature actually feeds on nectar and pollen, and uses its weapons for defence and catching prey for the larvae in the nest.