The microhabitats occupied by the arthropofauna in sites abounding in typical communities of giant rosette plants (Espeletiinae: Compositae) and tussock grasses were characterized and described. The microhabitats herein described come from the principal observed biotipes of vegetation (caulirrosula, tussock, bamboo-shaped and criptogam carpets), from soil horizonts and substrata appearing as a result of temperature factor and heth disturbance (rocky substratum, bovine dung). The arthropofauna comunity herein canvassed is featured by its abundance of coleoptera and diptera making up 40% of the total number of species. From nearly 85 species, 40% are coming from microhabitats derived both from alive substratum and from Espeletia grandiflora necromass. Lastly, the most relevant factors of occupancy of such microhabitats by the organisms are explained.