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Arthropods, especially insects, are highly sensitive to environmental changes and are considered excellent bioindicators. Therefore, the objective of this research was to know the entomofauna of beetles bioindicators of a forest fragment in the municipality of Abaetetuba-PA and to evaluate the environmental quality of this fragment according to the characteristics of the individuals collected. To collect the specimens, pitfall traps were used as a passive collection method and an entomological net as an active collection method. The sampling effort lasted six months, totaling 21 collections by each method. It was possible to collect specimens from 8 different families, of which six are considered environmental indicators (Curculionidae, Carabidae, Coccinellidae, Scarabaeidae, Cerambycidae and Chrysomelidae), with the Scarabaeidae family (52.87%) being the most abundant. The presence of bioindicator families point to the existence of degradation at the site, but do not show signs of severe environmental disturbance, in addition to indicating a possible recovery of the border vegetation, with a tendency to increase the complexity of the ecosystem. Thus, the study will contribute to future environmental monitoring actions. [ABSTRACT FROM AUTHOR]