Hi, you can use GBIF database to make this kind of searchs

https://www.gbif.org/search?q=Plebejus%20icarioides

Regards

Thank you for the suggestion. The first is only for 4 of the ~15 ssp. and is focused on Canada and I'm interested in California in particular or the whole US. The second lists occurrence which is great, I‘ll look closely if it has all I'm hoping for, but doesn't seem to have it all on one map.

For clarity I'm hoping to get a map of all the subspecies on one map instead of separate ones. Big ask here, but that's my ideal resource.

Dear Kelsey:

In California there are 16 subspecies of Boisduval´s Blue butterfly Plebejus icarioides. The distribution of the different races is very local and specific. I am including the geographical distribution or localities for each race according to the data label on the type material deposited in different Museums and illiustrated in the web page of Butterflies of America.

Plebejus icarioides evius (Boisduval, 1869): Baja California, Norte

Plebejus icarioides santana (J. Emmel, T. Emmel & Mattoon, 1998) Orange Co., Santa Ana Mts Yaeger Mesa.

Plebejus icarioides moroensis Sternitzky, 1930. San Luis Obispo Co. Morro Beach.

Plebejus icarioides atascadero (J. Emmel, T. Emmel & Mattoon, 1998). San Luis Obispo Co. Atascadero.

Plebejus icarioides pardalis (Behr, 1867). Alameda Co. Lake Chabot

Plebejus icarioides missionensis Hovanitz, 1937. San Francisco Co. Twin Peaks.

Plebejus icarioides pheres (Boisduval, 1852). San Francisco Co.

Plebejus icarioides pharapheres (J. Emmel, T. Emmel & Mattoon, 1998). Marin Co. Pt. Reyes Dunes.

Plebejus icarioides helios (W. H. Edwards, 1871) Colusa Co. Green Flat on Goat Mt

Plebejus icarioides icarioides (Boisduval, 1852) Vogelsang Pass, Yosemite Mt Park

Plebejus icarioides eosierra (J. Emmel, T. Emmel & Mattoon, 1998). Inyo Co. Sierra Nevada, Falls Creek.

Plebejus icarioides albihalos (J. Emmel, T. Emmel & Mattoon, 1998). Mono Co. White Mts.

Plebejus icarioides inyo (J. Emmel, T. Emmel & Mattoon, 1998). Inyo Co. Inyo Mts.

Plebejus icarioides argusmontana (J. Emmel, T. Emmel & Mattoon, 1998). Inyo Co. Argus Mts.

Plebejus icarioides panamintina (J. Emmel, T. Emmel & Mattoon, 1998).. Inyo Co. Panamint range

Plebejus icarioides fulla (W.H. Edwards, 1870). Mono Co. Sonora Pass.

For additional data, food plants and localities plese see the following link with the most complete information about this species:

https://butterfliesofamerica.com/t/Plebejus_icarioides_a.htm

https://www.butterfliesandmoths.org/species/Plebejus-icarioides

If you think this answer was useful please click on the recommend window in the lower left margin of this answer.

Regards,

Luis Miguel Constantino

Thank you for the information. I have looked at all this information and so I have a general idea of where the subspecies are, but there are quite a few regions with missing information, and the boundaries of ranges aren't clear. Unfortunately the butterfliesandmoths.org isn't down to subspecies. Basically, I'm interested in finer scale data. But the butterfliesofamerica.com is where I'm starting.

Thank you for trying.

Basically there are no maps available for this species because the distribution is very local. You have to do a lot of field work to find out the distribution at subspecies level. One way to start getting the data is visiting the local museums of natural history. It's a job that you have to do personally, I'm sorry but I can not do your homework.