Provisioning activity of Passaloecus cuspidatus extended from 29 May through 6 August 1987. Eighty trap-nests contained 281 provisioned cells containing 9,618 aphids. The average number of aphids per cell was 34.2 and the average number of cells provisioned per day was 0.73. Passaloecus cuspidatus stored the following aphids as provisions: Cinaria sp., Euceraphis sp., Macrosiphum euphorbiae, Myzus sp., Myzus cerasi, Myzus monardae, and Sitobium avenae. The number of aphids provisioned per cell was inversely related to aphid size. The number of aphids provisioned per cell varied signifIcantly (9-74).
Fricke, John M.
"Aphid Prey of Passaloecus Cuspidatus (Hymenoptera: Sphecidae),"
The Great Lakes Entomologist, vol 26
Available at: https://scholar.valpo.edu/tgle/vol26/iss1/4