User blog comment:LucidPigeons/Category Cleanup/@comment-2059440-20160301041147/@comment-366087-20160301043828

In practical applications the two are virtually the same. Just the parasitoid is the most extreme of parasites, as well as usually able to live separate as an adult.

Are there enough instances to support having them separate?

Also consider Symbiosis (mutual benefit) and Symbiotic (one way benefit)