Thank you so much sir for this valuable discussion. I have the confidence now to differentiate L. distans from the other two closely similar species. However a view of the upper is much needed for a reliable ID. You must be correct that using of flash on certain species like Lethe and Ypthima loses the actual field colouration. Therefore it seems always mandatory to observe these confusing species on the field itself. I am really building great knowledge each day from this forum. Thank you again.