Pseudoscorpions from Laos: Description of a new species and new records (Arachnida: Pseudoscorpiones)

Pseudoscorpions collected from southern Laos, Champasak Province, are described. One new species of the family Chthoniidae Daday 1888 is identified and illustrated under the name of Tyrannochthonius etu sp. nov. Five species belonging to five family are reported from Laos for the first time: Apocheiridium pelagicum (Redikorzev, 1938), Lagynochthonius tonkinensis (Beier, 1951), Geogarypus longidigitatus (Rainbow, 1897), Nhatrangia dawydoffi Redikorzev, 1938, Indolpium funebrum (Redikorzev, 1938).