Amycoida: Sitticinae

Sitticus belongs to a subfamily whose genera are most diverse in South America and are thus thought to have originated in the Neotropics. However, of the nearly 80 species in the genus Sitticus three-fourths occur in the Palaearctic. While some North American Sitticus are associated with the Neotropics others are from Palearctic stock including 3 species that are recent introductions to North America from Eurasia. Two of these S. fasciger and S. pubescens occur in Massachusetts. The four additional Massachusetts Sitticus are: S. concolor, S. floricola palustris, S. striatus and S. sylvestris.
Emerton, 1891; Kaston, 1981; Wing, 1983; Maddison, 1995; Richman, Cutler and Hill, 2012; Hill and Edwards, 2013