Very good shot indeed, excellent details. The lowered antenna is a common feature in many skippers.
Regarding ID I am not very sure but it wouldn't surprise me if it was a grizzled - I note the three distinct white areas at the base of the wing and this is consistent with grizzled (how many other species this applies to I am unsure)
Gorgeous color and detail. You positioned yourself nicely parallel to get as much as possible in the slice of focus. The ends of the perch look a little artificially out of focus, perhaps, or maybe I don't understand the geometry.
Thanks for comments.
Ron, the butterfly was not aligned with the perch, I tried to get the sensor parallel with the wings plane and so the ends of the perch are out of the focus plane.
When the BF is perfectly aligned with this kind of perches, most of the times the tips of the legs on the far side are not visible, here the tip of the front oof leg is visible. I did not use blur in pp.