Tsagonus osorno Chamberlin, 1957

Tsagonus osorno Chamberlin 1957: 30 (designated type species of Tsagonus), 32 (first description, in English; 10 km east of Puyehue, Osorno, Chile); Fig. 28 (p. 27), Fig. 31 (p. 33)

Tsagonus osorno Demange & Silva 1976a: 19 (listed, referred to Semnosoma; new combination); Fig. 15 (p. 23)

Tsagonus osorno Golovatch 2014: 265 (briefly mentioned)