This article discusses the field data that was collected regarding an enemy of the Black and Yellow Mud Dauber wasp, and to my knowledge it’s ability to discern whether or not the mud dauber had infested a spider. The article seems to be a little bit too academic for my research purposes and feels as though I need some background knowledge of the field work that was done to understand the results fully. It briefly touches on the nesting habits of mud wasps to serve as a base for the parasitic wasps of the genus Acroricnus that prey on them. They were looking at the behavioural ecology of the two species and were looking for an explanation for the parasites finding the mud daubers even when concealed in solid substrate, or mud which the mud daubers build their nests out of. Echolocation was what they purposed was the method. It also talks of how the parasitic wasps target young mud daubers and goes on to give detailed explanations.

It certainly seems a reliable source, with pictures, figures, graphs, and data to back up the information they are putting forth.  And the fact that it was found using Fleming own online database makes it seem reliable as well.

Polidori, C., Federici, M., Mendiola, P., Selfa, J., & Andrietti, F. (2011). Host detection and rate of parasitism by Acroricnus seductor (Hymenoptera: Ichneumonidae), a natural enemy of mud-dauber wasps (Hymenoptera: Sphecidae). Animal Biology, 61(1), 57–73. https://doi.org/10.1163/157075511X554428