The stigma are bi-coloured and the abdominal triangles are much too large for S. costiferum (Saffron-w'd) and the lack of any black markings on the thorax of both male and female eliminate S. semicinctum (Band-w'd). I wonder if they might be S. rubicundulum (Ruby Meadowhawk) or Cherry-faced (S.internum)? Without a look at the male hamule or female subgenital plate, I'm afraid we may never know for certain.

but the amber on the female wing leads us to suspect S. semicinctum. Loks like too much amber for costiferum.