superparasite
/ˈsuːpəˌparəsʌɪt/ /ˈsjuːpəˌparəsʌɪt/noun
1 Biology. A parasite of a parasite; = hyperparasite.
2A particularly successful or resistant parasite.
3Chiefly Entomology. A parasite or parasitoid which multiply infests a host; an additional parasite (of the same species) of an already parasitized host.
Origin
Late 19th century; earliest use found in The Century Dictionary. From super- + parasite.