This paper has the purpose of studying the interspecif relationships of larvae of Cochliomyia macellaria (Fabricius) and Chrysomya albiceps (Wiedemann) in laboratory. The experiments were conducted on climatized chamber set at 30ºC, 60+10% UR and 14h photophase. The relation of 1 larva/g diet was established. The association influence of post-embrionary development duration of both species. The association with Chrysomya albiceps influenced the weight of mature larvae of Cochliomyiia macellaria. reducing it significantly. Such weight decrease, along with the predation of larvae of C. macellaria larvae, yielded a decrease in survival in all of the stages.
Blowfly; interspecific relationship; larval development; predation