The present work collects observations made both in the field and in the laboratory of some grasshoppers (Orthoptera: Acridoidea), where aspects of their biology and behavior are described. Rowell (2013) points out that, in Panama, the Acridoidea is composed of 66 genera and 108 species; being the Acrididae the family that has more than 65% of the total grasshoppers; which have a great structural, ecological and behavioral diversity. We observed that Abracris flavolineata (DeGeer), 1773, Orphulella punctata (DeGeer), 1773 and Stenopola puncticeps (Stål), 1860, they are species that are more frequently found in different collection points; furthermore, the grasshoppers studied were generally located in Poaceace and there are nematodes that parasitize.