Viggiani, G. 1990 Description of Metaphycus delucchii sp. nov. (Hymenoptera: Encyrtidae), parasitoid of Gossyparia spuria (Modeer) (Homoptera: Eriococcidae), with preliminary biological information.. Bulletin de la Societe Entomologique Suisse 63: 281-285.

Notes: Abstract: New species of parasitoid described; biology.