On 4 August, 2005 a male Thyrateles procax (Cresson) (Hymenoptera: Ichneumonidae) emerged from a pupa of Vanessa virginiensis (Drury) (Lepidoptera: Nymphalidae) which was contained within a screened cage in Cook County, MN. This is the first published record of Vanessa virginiensis as a host of Thyrateles procax. Adults of T. procax appear to be rare, as only two old records (both males) are known from Minnesota (University of Minnesota, Insect Collection)
MacLean, David B. and Luhman, John
"New Record of Vanessa Virginiensis (Drury) (Lepidoptera: Nymphalidae) as a Host of Thyrateles Procax (Cresson) (Hymenoptera: Ichneumonidae),"
The Great Lakes Entomologist, vol 40
Available at: https://scholar.valpo.edu/tgle/vol40/iss2/1