Wooly Darkling Beetle

Photo ID in this genus is near impossible. Six species are listed for Spain, and you probably photographed two of them already. Slender ones are males, and should be compared with males only (females even more similar). In the male above, last antennal segment is almost as long as the preceeding three, while in this one: http://www.projectnoah.org/spottings/1110016004 it nearly equals five segments. Though it is unclear, if L. hirta is among yours, and which, if so - better label anything as Lagria sp.: http://www.projectnoah.org/spottings/1074486006 http://www.projectnoah.org/spottings/37718154 http://www.projectnoah.org/spottings/38685477 http://www.projectnoah.org/spottings/358766021 http://www.projectnoah.org/spottings/1074486006 http://www.projectnoah.org/spottings/1881366003 http://www.projectnoah.org/spottings/1837566003 http://www.projectnoah.org/spottings/1887726002 http://www.projectnoah.org/spottings/1884046003 http://www.projectnoah.org/spottings/1895116002 http://www.projectnoah.org/spottings/1932386002