y 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 and even outer surface. Each inner cell is provided with several insect larvae or paralyzed spiders that the adult female has collected. A single egg is then deposited in each cell and the hatching wasp larvae complete their development on the provided prey. These wasps are much less aggressive than solitary forms, as they do not protect their nest. About the only way someone could be stung by one of these wasps is by accidentally stepping on or carelessly handling one, which seem very unlikely.
Black and Yellow Mud Dauber- Sceliphron caementarium. This is solitary insects that build nests out of mud in sheltered locations, frequently on man-made structures such as bridges, barns, open porches or under the eaves of houses. These nests are not aggressively defended, and stings are rare.
Black and Yellow Mud Dauber.
The black and yellow mud dauber's nest comprises a series of cylindrical cells that are plastered over to form a smooth nest that may attain nearly the size of a human fist. After building a cell, the female wasp captures several spiders. The captured prey are stung and paralyzed before being placed in the nest, and then a single egg is deposited on the prey within each cell. The wasp then seals the cell with mud. After finishing a series of cells, she leaves and does not return. Eventually, the hatching larva will eat the prey and emerge from the nest. A common species of cuckoo wasp, Chrysis angolensis, is frequently a cleptoparasite (steals they prey by laying its eggs on it)in Sceliphron nests, and is only one of many different insects that parasitize these mud daubers.
There are some 30 other species of Sceliphron that occur throughout the world, though in appearance and habits they are quite similar to S. caementarium. S. caementarium is widespread in Canada, the United States, Central America, South Africa and the West Indies, and has been introduced to many Pacific Islands (including Australia, Hawaii andJapan), Peru and Europe , where it has become established in the western Mediterranean Basin.
Organ Pipe Mud Dauber-Trypoxylon politum. These are fairly large wasps, shiny black with pale hind tarsi. Male organ pipe mud daubers are among the few male wasps of any species to stay at the nest. A male "stands guard" (to prevent theft of prey or nest materials, as well as to ward off parasites while a female is away collecting spiders. Mating typically occurs on her visits to the nest. They typically build their nests in sheltered locations, and large aggregations may form with dozens to hundreds of nests in a small area. The shape of their nest is the derivation of their common name.
Organ Pipe Mud Dauber, Nests and Parasitized Spiders M0ved from Nest. Images Courtesy or Pollinator.
Organ pipe mud daubers are also an exceedingly docile species of wasp, and generally pleasant to have around, as they serve to keep spider populations down. Stings to humans are very rare, bordering on non-existent, although if squeezed, they will sting in self-defense. There are a great many other species in the genus Trypo