There's only so far one can go in identifying these from field photos.
Those with obviously hairy eyes are assigned here to S. torvus.
Females similar to torvus but apparently bare-eyed are assigned to S. vitripennis,
if they have only pale hairs on the apical quarter of the front and mid femora.
Females with yellow hind femora are "S. ribesii/rectus".
Males with hind femora at least three-quarters dark are "S. vitripennis/rectus".