Reference:

Eberhard, W., 1970. The predatory behavior of two wasps, Agenoideus humilis (Pompilidae) and Sceliphron caementarium (Sphecidae), on the orb weaving spider Araneus cornutus (Araneidae). Psyche: A Journal of Entomology, 77(2), 243-251.

URL:

https://web.archive.org/web/20090420163639id_/http://striweb.si.edu/publications/PDFs/1969_wasps_prey_on_spiders_Psyche.pdf

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