All wasps of the genus Bembix are included in the group of genera and species known as sand wasps. The majority of sand wasps have a banded (bee-like) appearance and are black and yellow or white and black. The marks on many are light greenish. All of them make their egg nests in the ground and fill them with insects, including different kinds of flies. Sand wasps frequently build numerous nests in a single, constrained sandy area, but they lack the commonality and sociality of paper wasps and yellow jackets. It is black with yellow or yellowish-green patterns, about 2.5 cm long. Along the coast, Microbembex monodon is discovered. Many sand wasps have white, yellow, or green patterns on their black bodies.
The majority of sand wasps have a banded (bee-like) appearance and are yellow and black or white and black. The marks on many are light greenish. All of them make their egg nests in the ground and fill them with insects, including different kinds of flies. The mud-dauber wasp and the sand wasp are closely related, but unlike their relatives, the sand wasp builds its nest in the sand. Sand wasps can be found in heath, forests, and urban settings. Although they can sting painfully, sand wasps are not as violent as European wasps. Normally, they only attack those who disrupt their nest. The pain from the sting might be reduced by applying an ice pack. An allergic reaction should be investigated medically if there are any signs of it.
The lone female excavates a nest in the sand. After that, she goes hunting and returns with her immobilized prey to the under nest so the larva can eat it. She closes the tunnel at the end with sand after depositing an egg onto one of the prey. Before becoming an adult, the larva eats and pupates on the inside of a cocoon inside the nest. A new nest is dug and an additional egg is laid by the mother once her progeny has entered the pupa stage. The female visits the flower tops frequently to provide each compartment with a mound of paralyzed invertebrates after excavating a tunnel and carving out one or even more egg chambers. She lays an egg, seals the chamber, and abandons her young for consumption.
In Australia, there are numerous sand wasp species and genera. During the summer, they build their nests in the ground and spend a lot of time flying around in search of flying insects, mosquitoes, or other kinds of flies. They can be found in a variety of environments, but are most frequently found in wide, sandy areas near rivers. Its propensity to linger uncomfortably near a person to gather flies drawn to that person is frequently misinterpreted as aggressive behaviour. However, because of their placid nature, you can feed these wasps by giving them a live fly that is still unable to fly. Due to their banded colouration, sand wasps can occasionally be confused with wasps or yellow jackets.