Chamberlin-1924
Guides
Citharoceps fidicina
Citharoceps fidicina is a tube-dwelling spider in the family Segestriidae, described by Chamberlin in 1924. The genus Citharoceps is endemic to the southwestern United States and Mexico. Segestriid spiders are characterized by their elongated, cylindrical abdomens and their habit of constructing silken retreats in crevices, under bark, or in other sheltered locations. Members of this family possess six eyes arranged in a distinctive semicircular pattern, a trait that distinguishes them from most other spider families which typically have eight eyes.
Escaphiella hespera
goblin spider
Escaphiella hespera is a species of goblin spider in the family Oonopidae, characterized by small body size and reduced eye structures typical of this spider family. The species was described by Chamberlin in 1924 and is known from the southwestern United States and Mexico. Like other oonopids, it likely inhabits leaf litter and soil microhabitats, though detailed ecological studies are lacking.