Myartseva, S.N. 2003 Six new species of the genus Metaphycus Mercet from Mexico (Hymenoptera: Encyrtidae).. Zoosystematica Rossica 12(1): 125-134.

Notes: Six new species of the encyrtid genus Metaphycus are described from Mexico: M. celticola sp. nov., M. farfani sp. nov., M. karwinskiae sp. nov., M. sergueii sp. nov., M. superbus sp. nov., and M. tuxpan sp. nov. All new species belong to the insidiosus-group. The soft scale insect Differococcus argentinus, the host of M. celticola, is recorded from Mexico for the first time.