Reference:

Polidori, C., Boesi, R., Pesarini, C., Papadia, C., Bevacqua, S., Federici, M., & Andrietti, F., 2007. Temporal Relationship between the Prey Spectrum and Population Structure of the Weevil-Hunting Wasp Cerceris arenaria(Hymenoptera: Crabronidae). Zoological Studies, 46(1), 83-91.

URL:

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.579.560&rep=rep1&type=pdf

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