nido trovato nel lato interno di un'asse di legno in corrispondenza di un muro "abbandonato"
Collecting a ball of mud.
In the third and fourth picture it is in a spider web. At first I thought that it was caught in the web. After watching it go in and out of the web repeatedly, I realized that it was trying to get the spider from the hide.
Sceliphron is a genus of Hymenoptera of the Sphecidae family of wasps, commonly referred to as mud daubers. They are solitary and build nests made of mud. Nests are frequently constructed in shaded niches, often just inside of windows or vent openings, and it may take a female only a day to construct a cell requiring dozens of trips carrying mud. Females will add new cells one by one to the nest after each cell is...