Based on the few available photos, the small sample size seems to indicate that the variability of the Musquiz alterna may be higher, but I may chalk that up to a larger collecting area in Musquiz than that of some of the others in the Davis that you mentioned. Based on the available photos, your animals in particular, look to more closely resemble the "atypical" patterns and coloration present in the other populations in the Davis, rather than Alpine locales. My two cents.

These 3 are from within 1-1/4 miles of each other on Boy Scout.