Behavior of Trichogramma atopovirilia Oatman & Platner and T. pretiosum Riley (Hymenoptera: Trichogrammatidae) on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg masses - Beserra, E. B.; Dias, Carlos Tadeu dos Santos; Parra, José Roberto Postali (Brazilian Journal of Biology, 2005)