It is a purple Erese, or Erese ladybird (Eresus kollari).Great job L Leraymurat ! I prefere the second story ^^ And what a beautifull spider ! thx !
it is a rather rare spider which lives in the maritime dunes and which presents the peculiarity of coming out of its hole only twice a year ... one week at the beginning of autumn so that the male goes to fertilize the female and one week at the beginning of spring when the little ones can go find a place to stay!