APIS-STING

The sting of apis is modified ovipositor and is used for injecting poison.It is composed of two straight grooved stylets or lancets.The muscles associated with the sting help in the operations of the lancets and a set of three chitinous plates on either side acts as levers to move the barbs.The poison glands secreats the acidic materials that is stored in a sac like poison sac located at the base of the sting.There is associated alkaline gland that secreats alkaline materials. The two materials mix to form the poison or bee venom that flows down the sting into the wound of the victim .After performing there duties the workers bee leaves the sting apparatus and dies.