Loxoscelism is a health problem caused by the bite of spiders of the genus Loxosceles (Araneae: Sicariidae). In Chile, all necrotic arachnidism is attributed to the Chilean recluse spider, L. laeta, a species that may be preyed upon by the spitting spider Scytodes globula Nicolet (Araneae: Scytodidae). The first approximation to the risk of loxoscelism is based on the knowledge of the species distribution but although L. laeta and S. globula are very common in central Chile and are synanthropic spiders, the distribution of these species is not well known.
