Euwintonius is a harvestman genus in the family Assamiidae, subfamily Dampetrinae. Members of this genus have an unarmoured eye pedicel, scutal areas 1-5 and the first three tergites also being unarmoured. The first scutal area is without a longitudinal groove and the palpal femur has one medial-apical spine.Roewer, C.F. (1935a) Alte und neue Assamiidae. Weitere Weberknechte VIII (8. Ergänzung der "Weberknechte der Erde" 1923). Veröffentlichungen aus dem Deutschen Kolonial- und Übersee-Museum in Bremen, Bremen, 1(1), 1–168.
Etymology This genus is named after the town of Winton in central west Queensland, Australia, where the first specimen was found. Roewer, C.F. (1923) Die Weberknechte der Erde. Systematische Bearbeitung der bisher bekannten Opiliones. Gustav Fischer, Jena, 1116 pp. The type species is Euwintonius continentalis.
List of species Four species are currently accepted as being members of this genusPonting, J. (2015) Replacement name for Euwintonius insulanus Suzuki, 1982 (Opiliones: Laniatores: Assamiidae: Dampetrinae), primary junior homonym of E. insulanus Roewer, 1940. Zootaxa. 3925(3):450
Euwintonius bismarckensis Ponting, 2015 from the Bismarck Archipelago Euwintonius continentalis Roewer, 1923 from Australia Euwintonius insulanus Roewer, 1940 from New Guinea Euwintonius thaiensis Suzuki, 1985 from Thailand
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