hyperparasite

noun2

1. •
   Any parasite whose host is a parasite.

   • Nose′ma [...] A genus of protozoa, including the supposed hyperparasite of the malarial organism; [...] — 1914
2. •
   An insect that parasitizes another parasitic insect.

   • Eupteromalus parnarae Gahan [...] is also a recorded hyperparasite of Apanteles rifucrus Haliday on Naranga aenescens Moore, [...] — 1983