Male, Idylwild WMA, MD
Comparison of male Slender Bluet (top) and male Pale Bluet, Idylwild WMA, MD
Note pattern of blue on S10 and shape of appendages. Otherwise very similar.
Female, Idylwild WMA, MD
Identification based on pattern on S8. Males of both Slender and Pale were present. Females seemed to fall into two groups; Ones with this pattern on S8 and ones with smaller triangles on S8. I am assuming the former were Pale and the latter Slender, but am not fully confident of this ID.