Genus Ecuadattus gen. nov.

Type species: Ecuadattus typicus Zhang & Maddison, sp. nov.

Etymology. The first part of the generic name, “Ecuad” is derived from Ecuador (where the species were found), and the second part “attus” is a commonly used ending for salticid genera; masculine in gender.

Diagnosis. Medium sized spiders usually found on foliage. Carapace with guanine deposits in eye area and abdomen usually with light colored foliate markings. Female chelicera with two promarginal teeth and one retromarginal tooth, but male chelicera usually with a bicuspid tooth on promargin. First tibia with three pairs of ventral macrosetae; first metatarsus with two pairs. Epigynal window present with a median septum. Spermatheca oval or round. Differs from other Neotropical foliage-dwelling euophryine genera by the unique male palpal structures: embolic disc small or highly reduced; embolus short and slightly curved; retrolateral sperm duct loop narrow; retrolateral tibial apophysis long and finger-like.