The Erinys Beta Plague was a disease carried by Erinyds. It introduced to the Boeot Peninsula by Erinyds brought to the planet by Jentrak for that very reason. It wiped out large numbers of male Tirikkin before being cured by visiting Thisspiasian Force healers in 783 BBY. However, the Peninsula's population continued to decline due to an infestation of rancors.