Entomofauna asociada a pasturas tropicales Cenchrus ciliaris, Chloris gayana y Megathyrsus maximus

Introduction. Pastures are the primary source of food in livestock systems and can be a suitable niche for insects with beneficial harmful functions. Objective. To estimate entomofauna associated three species pastures, Cenchrus ciliaris, Chloris gayana, Megathyrsus maximus, conditions Colombian Caribbean. Materials methods. Ten samplings were carried out two contrasting periods (August to October 2018 January March 2019), forage (Cenchrus gayana) within 1000 m2 used. Arthropods identified by order family typified functional groups. Diversity abundance indices pasture season estimated, as well their correlation climate. A simple correspondence analysis was performed. Results. total 380 from 7 orders 35 families collected, greatest Hemiptera Coleoptera. The Shannon’s diversity index higher all C. except ciliaris. Phytophages found percentage (66.84 %), followed predators (27.11 %). Insect influenced interaction between pasture, showing an increase at low temperatures, M. maximus. represented adequate microenvironments maintain insects, Coleoptera being most numerous representative groups phytophages predators, respectively. Conclusion. maximus similar insect diversity, however, depended on influence pastures.