The stripe and the bands usually do not reach the anterior tip, which has an orange tinge more or less concentrated, sometimes forming a dense zone that resembles a collar.

In fully mature specimens, the number of flecks is high enough so that the dorsum appears to be of a uniform greenish dark-brown color.

[1] The habitat of O. josefi includes moist and seasonal forests in northeast Rio Grande do Sul and east Santa Catarina, southern Brazil.

[1][2] The specific epithet josefi honors Dr. Josef Hauser S. J., founder of the Institute of Planarian Research at Unisinos.

In laboratory experiments, O. josefi captured and consumed the invasive land planarian Endeavouria septemlineata.