looks like a very fresh specimen, perhaps not fully inflated wings giving rough look? Or had it been wet?The setae on the body and legs are consistant with fresh Acyphas e.g. particularly long setae on the femur, shorter on tibia. I've photographed specimens with the yellow on inner forelimb, but not at the base of the wing. I've not seen antennae held like this - I usually see them at rest with antennae tucked away. Is there a faint hint of the dark wing spot on this specimen?