Emmel & Emmel 1998. A new species of Agriades (Lepidoptera: Lycaenidae) from the Sierra Nevada and Trinity Alps of California, and the biology and geographic variation of Agriades podarce in California. Emmel, Thomas C.[Ed]. Systematics of western North American butterflies., Mariposa Press, Gainesville, 1998: i-xviii, 1-878. Chapter pagination: 287-302