Technical Abstract: The cranberry tipworm, Dasineura oxycoccana (Johnson), and the blueberry tipworm, Prodiplosis vaccinii (Felt) are recurring cecidomyiid pests of cultivated blueberries in the Southern United States and Mediterranean Europe. Insecticides can give short-term tipworm control, but overlap in parasitoid phenologies indicates the potential for natural control of tipworm populations. Using a combination of laboratory rearing and mitochondrial DNA analysis of field samples, we identified five species of solitary endoparasitoids, which killed 30 – 40% of tipworms. These species include at least three un-described Platygastrids in the genera Synopeas, Platygaster and Inostemma. An undescribed prepupal idiobiont, Aprostocetus sp. (Eulophidae: Tetrastichinae) was the only tipworm parasitoid that was consistently active when rabbiteye blueberries were in flower. Six percent of tipworm prepupae, half of which already contained platygastrid larvae, were parasitized by Aprostocetus.