In Michigan, Crabro cribrellifer tends to show nest clumping within a nest aggregation. Its nesting behavior is similar to that of other Crabro, and it preys on Neoitamus flavofemoratus (Diptera: Asilidae) on warm days in July. Miltogrammine flies Metopia campestris are active at the nesting site.
Barrows, Edward M.; Lebau, Patricia L.; and Eckstein, Cathlyn E.
"Behavior at a Nesting Site and Prey of Crabro Cribrellifer (Hymenoptera: Sphecidae),"
The Great Lakes Entomologist: Vol. 11
, Article 8.
Available at: http://scholar.valpo.edu/tgle/vol11/iss3/8