Bioecology studies in field and laboratory conditions were carried out in Río Hato (Cocle Province), Chepo (Panama Province). The rate of parasitisms Trissolcus basalis (Wollaston) and Telenomus podisi (Ashmead), and the behavior of parasitism evaluated in field for differents rice varieties (IDIAP-38, IDIAP-L7 and Prosequisa-4) were determinated. The predominance of Tr. basalis, under field conditions was registered, standing out some variations as for the proportion of the parasitoids complex for the variety Prosequisa-4, which can be attribute to the plant architecture. The biological parameters studied under controlled conditions of temperature (28 oC ± 2 oC), relative humidity (80% ± 5%) and photophase (12 hours), such as the biological cycle (egg – adult), the longevity of the females, the survival rate, and the rate of adults emergency, pointed out to demonstrated the excellent performance of Te. podisi on Tr. basalis. The results of the field and laboratory trials support the wide grade of adaptation of Te. podisi for differents ecosystems, in the country. For that reason, this specie can be considered as a promissory candidate to applied biological control programs, for the management of O. insularis.