 from releasing its pheromones which would normally attract other hornets in the vicinity to mass attack the hive.
In the mountains of Japan where these hornets are commonly encountered villagers eat them deep fried. Also a number of companies in Europe and Japan have begun to manufacture diet supplements and energy drinks which contain synthetic versions of secretions which the larval hornets feed to adults. The product sold as “hornet juice” is said to greatly enhance human endurance.
Parasitic (Parasitoids) Hymenoptera
There are many families of Hymenoptera that are parasitic. In strict entomological terms they are referred to as parasitoids. In the world of bugs parasite refers to an insect or one of its relatives (e.g. mites) that feeds on a host from a different groups animals (e.g. humans) but does not generally kill it in doing so. Example of this would include fleas, mites, lice and many others. A parasitoid is an insect or relative that typically lays its egg or eggs on or in its host which typically belong to the same group or animals (e.g. insect laying its eggs on another insect). Once the eggs hatch the larvae feed and develop internally or externally on that host and in doing so kill it.
Thread Waisted Wasps. As a group most thread waisted wasps are characterized by an elongated waist or petiole that joins the thorax to the abdomen. These are commonly found around the home. However some species have a narrow waist. In this case they can be separated from Vespidae by the front wing not bring folded longitudinally. These wasps can easily be distinguished from other similarly appearing wasps by the elongated stalk or petiole that connects the thorax to the abdomen; hence another common name is the thread-waisted wasps. The black and yellow mud dauber, Even though these are solitary insects a single nest may be composed of several elongated cylindrical cells made of mud and placed side by side until the make a mass about the size of a fist. The entire structure is then plastered over to make a smooth a