The species of the genus Lonomia belonging to the order Lepidoptera are characterized by their dangerous venom in larval state, the contact with some of these species can cause the death of anyone who touches them; this represents a risk for the rural population of some departments of Colombia. Specifically in Casanare, the species Lonomia achelous and Lonomia casanarensis have been related to accidents in the area, compromising the health of some inhabitants; most of these incidents occur due to carelessness of the population or lack of knowledge of the caterpillar. This study produced a characterization of the habitat of the species using information from the registered trees with the presence of the caterpillar, likewise one model of the probability of occurrence of accidents that was made with points of presence of the most common host tree of the caterpillar, Schefflera morototoni. I found that the ecosystems that had the most probable conditions for occurrence of these accidents are: the intervened rural areas (<20% of the original remnant ecosystems) and the dense high forests of the flood plains of rivers; associating them directly with urban growth and proximity to bodies of water.