A spider wasp will sting the spider in a ferrocious battle, then drag the parasitized victim quite a ways back to its underground nest. Note its long legs, which is a characteristic of spider wasps. I am guessing the long legs aide in dragging the victims. The female spider wasp then lays an egg on the spider and again, the larva will have a fresh meal. Poor spider!
Black and Yellow Mud Dauber, Sceliphron caementarium is a beautiful and agile creature. This one I found near our pond gathering mud for its nest. The second part of its name caementarium means "builder". This is the wasp that builds the cylindrical mud structures on the side of your garage or house. The female wasp will find spiders and parasitize them. She carries them back to her mud nest and stuffs them inside. She then lays an egg on the spider and seals it in. When the young wasp larva emerges, it has a fresh meal. Not a great way to die for Mr. Spider!
I challenge any human to build such pefectly cylindrical shapes with their hands. It would be a difficult feat. But could you even imagine doing it with your mouth? These wasps fly to the soft mud, scoop up a mouthful, fly back to their nest and form perfectly shapes tubes with their mouth. Amazing! Another fact, these wasps rarely sting.
On the same day I captured the image of the mud dauber, I found this beautiful creature about 20 feet away. It was snacking on a Marsh Milkweed, Asclepias incarnata. This is a Great Golden Digger Wasp, Sphex ichneumoneus. It was in constant motion.
The females will dig burrows that are almost vertical. They will then construct cells radiating out from a central tunnel. Each tunnel is filled with crickets, camel crickets, and katydids. An egg is laid on the prey in each tunnel. When the larva hatches out, it will have a ready-made orthopteran meal. Talk about room service!
This beautiful wasp was found by my buddy Linsi, here in Indianapolis. She is now in Australia and you can follow her blog here. She asked me to ID it for her. I was having a bit of trouble, so I asked Eric Eaton for a some help. He knew right away that it was a Spider Wasp, Tachypompilus ferrugineus. It has a beautiful, rich rusty-colored body offset with black iridescent wings. Ferrugineus is Latin for "rusty", a very fitting name.
All of these wasps are a valuable part to the circle of life. They are an important part of nature's checks and balances. Not all wasps will attack, so with caution one can enjoy some of the world's most fascinating creatures.