Abstract
The aim of this project is to study the systematics and distribution of the main families of haplogyne spiders from the Neotropical region. The taxa included are Mygalomorphae, Haplogynae and Palpimanidae, all of which present the haplogyne type of genitalia, with females presenting fused copulation and fertilization ducts and males presesenting very simple palps devoid of accessory scler…