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The mud dauber wasp names, dirt dauber, mud wasp, etc., and is composed of different  families that use mud to build their nests, hence the name.  The nests are built by the female.  She lays one egg per tunnel shaped cell.  That cell will contain food, such as another insect, or, perhaps, a spider, for the larva when it hatches. 

The mud dauber is similar in appearance to a wasp, but is thinner.  They are not pests, though some might argue that point.  They are not aggressive and very rarely sting, only when they feel threatened.  They can sting repeatedly without losing their stinger or dying.  The stinger inserts venom through its stinger into its prey.  For insects, it is their way of paralyzing and preserving the insect for the larva.  For humans, it is painful.  Some people are allergic to the sting, and can go into anaphylactic shock.

An adult mud dauber subsists on nectar, whereas the larvae feed on spiders and other insects enclosed in the nest by the female.  They have four stages in their lives – egg, larva, pupa, and adult.  The egg stage is only a few days before it hatches into a larva.  The larva stage is approximately three weeks until it hatches into the pupa.  The pupa stays in the nest until spring when it develops into the adult.  And, the cycle continues year in and year out.



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