chilelopsis calderoni is a species of mygalomorph spiders of chile, named after dr raúl calderón. males differ from "c. puertoviejo" in the more sinuous distal portion of the bulbal duct; females differ in the spermathecae with a distinct fundus and a narrowed duct. males differ from "c. serena" by the presence of a dense patch of setae on the anterior tibiae, females in the undivided spermathecae.