Derm Dx: A pruritic eruption on the ankles

A 42-year-old man presents with an intensely pruritic eruption affecting both ankles for approximately 2 weeks. He is active in sports and spends ample time outdoors. He also does yard work on his property on weekends. He has 3 cats that spend time outdoors in the daytime and on occasion share his bed at night. Examination reveals scattered excoriations of ...