none Parasitoids reared from Ancylis platanana (Clemens), collected from sycamore plantations (Platanus occidentalis L.) growing in the bottomlands of the Mississippi Delta, included Apanteles sp. nr. polychrosidis Viereck, Bracon sp. (probably montowesi (Viereck)), Macrocentrus sp., Gambrus ultimus (Cresson), Brachymeria molestae Burks, Spilochalcis albifrons (Walsh), S. igneoides (Kirby), and Pediobius niger (Ashmead). Hyperparasitoids were Isdromas lycaenae (Howard), Elasmus atratus Howard, E. meteori Ashmead, Horismenus atroscapus (Girault), H. fraternus (Fitch), and H. microgaster (Ashmead). Seasonal occurrence and other biological notes are discussed. Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Land and freshwater zones; Nearctic region; North America; USA Ancylis platanana (Tortricidae); Hymenopteran parasites; Chalcidoidea & Ichneumonoidea; Parasite annotated list & seasonal prevalence; Hyperparasitism; Hymenoptera parasite annotated list; Prevalence; Seasonal; Chalcidoidea & Ichneumonoidea (Hymenoptera); Mississippi; Vicksburg; Hymenopteran parasite annotated list & seasonal prevalence Hymenoptera; Hymenopteran parasites; Hyperparasites, annotated list & seasonal prevalence, lepidopteran host Ichneumonoidea; Chalcidoidea; Lepidopteran hosts; Ancylis platanana; Annotated list & seasonal prevalence; Hyperparasitism; Annotated list; Ancylis (Lepidoptera) host; Mississippi; Vicksburg; Annotated list & seasonal prevalence in lepidopteran host