A wasp is a social winged insect that has a narrow waist and a sting. It can be divided into 3 categories namely parasitic wasps, solitary hunting wasps and social wasps.
Parasitic Wasps
These wasps are dangerous in that they lay their eggs on or in other insects(including bees). Their young ones develop in the host, almost killing the host. Their females have stings but they are primarily used for laying eggs in the host. They are generally not aggressive. However, if their colonies are allowed to grow, they can pose danger to Eco-balance created by insects. Processes such as pollination could be in danger.
Solitary Hunting Wasps
The females of these wasps create rearing cells in the nests. They then go out, paralyses a prey(which is usually another insect) and feeds on it. Once well fed, they lay eggs and seal the nests. They have very painful and fatal stings.
Social Wasps
These are by far the most common wasps. They interact on a day to day basis with humans as their habitats are usually near, or in human houses. They are divided into 3 categories namely; the yellow jackets, the hornets and the paper wasps. Of the three, paper wasps, also known as umbrella wasps, are the most common. They are 0.7 to 1.0 inches long. They establish colonies annually and make nests from masticated wood pulp. Their nests are usually found in rodents hollows most likely inside the houses or in playgrounds. So why are wasps so dangerous? They are never aggressive unless their nests are threatened. This makes them look harmless. However, if they sting you, it is very painful and can be fatal since their sting produces a deadly anaphylactic reaction in some people who have allergies. This chemical reaction can be fatal if not treated immediately. Additionally, due to the close proximity of their nests to human dwellings, they can pose a threat to the health of children who might be unaware of the lurking danger.