Even more detail here:
https://pubmed.ncbi.nlm.nih.gov/23938758/
... and an update on everything being renamed recently - 'Polydnaviridae' to 'Polydnaviriformidae', etc.:
https://pmc.ncbi.nlm.nih.gov/articles/PMC9953437/
The Polydnaviridae (PDV), including the Bracovirus (BV) and Ichnovirus genera, originated from the integration of unrelated viruses in the genomes of two parasitoid wasp lineages, in a remarkable example of convergent evolution. Functionally active PDVs represent the most compelling evolutionary suc …