(RICHFIELD) – An Idaho Falls woman was killed Saturday afternoon when her motorcycle collided with a semi truck near Richfield. 43-year-old Jan Boline was traveling west when she lost control and crossed into oncoming traffic. The semi, driven by 46-year-old Goran Mandura of Twin Falls was unable to stop in time. Boline was not wearing a helmet and died on impact. The crash is still under investigation.