Actia interruptaActia interrupta is a species of tachinid flies in the genus Actia of the family Tachinidae. Actia interrupta is an important parasitoid of the genus Choristoneura, which includes pests such as the spruce budworm.DistributionAlaska, British Columbia to Newfoundland, California to Virginia and Tennessee, not recorded from most of central United States with the exception of Colorado.