Lachesis muta (Linnaeus, 1766)

Type locality. Suriname. Corrected to Vitória,state of Espírito Santo, Brazil, by Fernandes et al. (2004) .

Distribution. Widespread in forested South America, occurring in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela (Plt. 80A). In Brazil, widespread in Amazonia and northern Atlantic Forest, forming a disjunct distribution, with marginal records in the northern portion of the Cerrado and a single record in upland forest in Caatinga (Plt. 80A). Recorded mostly at low elevations (Plt. 80B). Previous maps and taxonomy in Fernandes et al. (2004). Observed in the field in primary and secondary forest (Martins and Oliveira, 1998; Campbell and Lamar, 2004; Bernarde and Abe, 2006; Bérnils, 2009; Silva-Soares et al., 2011), and also disturbed areas, including pasture, and cocoa plantation (Argôlo, 2004; Bernarde and Abe, 2006).