Cassino, P.C.R., Perruso, J.C., & Nascimento, F.N.de 1993 [Contribution to knowledge of bioecology interactions between white flies (Homoptera, Aleyrodidae) and Orthezia praelonga Douglas, 1891 (Homoptera, Ortheziidae) in the citrus environment.]. Anais da Sociedade Entomologica do Brasil 22(1): 209-212.

Notes: Original title: Contribuicao ao conhecimento das interacoes bioecologicas entre aleirodideos (Homoptera; Aleyrodidae) e Orthezia praelonga Douglas, 1891 (Homoptera; Ortheziidae) no Agroecos-sistema citrico. Abstract: Two hundred and forty branches of Citrus sinensis Osbeck, each one with ten leaves, were examined, and the percentage of leaves containing the species studied were noted; results indicate that white flies and O. praelonga compete for space.