Note: The genus name Icaricia has been used since this is the most common. Following Lamas (2004), replace Icaricia with Aricia for the current names. Only vernacular names with two or more sources have been included (the rest commented out). Many of these are probably synonyms.
Icaricia icarioides icarioides (Boisduval, 1852) - Boisduval's Blue
Icaricia icarioides albihalos J. Emmel, T. Emmel and Mattoon, 1998 - White-spotted Blue, White Mountains Icarioides Blue
Icaricia icarioides ardea (Edwards, 1871)
Icaricia icarioides argusmontana J. Emmel, T. Emmel & Mattoon, 1998
Icaricia icarioides atascadero J. Emmel, T. Emmel & Mattoon, 1998 - Atascadero Blue
Icaricia icarioides austinorum J. Emmel, T. Emmel & Mattoon, 1998 - Spring Mountains Icarioides Blue
Icaricia icarioides moroensis (Sternitzky, 1930) - Morro Bay Blue, Morro Blue
Icaricia icarioides panamintina J. Emmel, T. Emmel & Mattoon, 1998
Icaricia icarioides parapheres J. Emmel, T. Emmel & Mattoon, 1998 - Point Reyes Blue
Icaricia icarioides pardalis (Behr, 1867) - Pardalis Blue
Icaricia icarioides pembina (Edwards, 1862) - Pembina Blue
Icaricia icarioides pheres (Boisduval, 1852) - Pheres Blue
Icaricia icarioides santana J. Emmel, T. Emmel & Mattoon, 1998 - Trabuco Blue
A. icarioides has been classified in at least four different genera since it was named by Boisduval in 1852. It started out in Lycaena, was transferred to Icaricia by Nabokov (Hodges et al. 1983), moved to Aricia by Bálint and Johnson (1997), merged with some other genera in the supergenus Plebejus by Gorbunov (2001), which was accepted by Opler & Warren (2003), however Lamas (2004) among others use Aricia. Besides all that, synonymy, subgenera, and subspecies vary considerably depending on the author. It's a mess.