I'm not sure about its psychogeographical credentials, but on "flânerie rural" and/or "le dérive campestre", if you haven't looked at it yet, you might try Cloke, P. Doel, M. Matless, D. Phillips, M. "Writing the rural: five cultural geographies". Though it was compiled in 1994, I think it addresses some of your concerns. Check out the content(s) at https://books.google.pt/books?id=BrnNbwtrJzUC&pg=PA220&lpg=PA220&dq=flannerie+rural&source=bl&ots=Ofa5LOmRNC&sig=_NnDTBg80bvF8qAmoHLldWY5QG8&hl=pt-PT&sa=X&ved=0ahUKEwjF66vksvXYAhWKuhQKHa30DPQQ6AEIQzAH#v=onepage&q=flannerie%20rural&f=false.