Bald-faced hornet is constructed too close to human habitation. They vigorously defend the nest, with workers stinging repeatedly, as is common among social bees and wasps. However, the baldfaced hornet has a unique defense in that it can squirt or spray venom from the stinger into the eyes of vertebrate nest intruders. The venom causes immediate watering of the eyes and temporary blindness. The life cycle of a colony can be divided into the founding stage, the ergonomic stage and the reproductive stage. Colonies show annual cycling. New nests are generally founded during spring and early summer by a single queen, though
Hornet robberfly Wales. It is reliant on the availability of rabbit or cattle dung. It is a member of the robberfly family Asilidae, subfamily Asilinae and is included in the list of endangered species in the British Isles. Hornet robberfly The hornet robberfly, Asilus crabroniformis, is a species of predatory insect of the Asilidae family. Reaching more than 25 mm in body length, it is one of the largest flies in the United Kingdom. and feeds on grasshoppers, dung beetles and other flies. Unlike an actual hornet, the robberfly only has one yellow patch on its abdomen and one pair of wings.