Mahnert & Schmidl 2011. First record of the subfamily Pycnocheiridiinae from South America, with the description of Leptocheiridium pfeiferae gen. n., sp n. (Arachnida: Pseudoscorpiones: Cheiridiidae). Revue Suisse de Zoologie, 118(4), Decembre 2011: 659-666