Fine. I just tried Breuning's key in Longicornia, and then it came out as O. vittata. But it is not a species that I know, so I can not tell if it is correct. But elytra certainly has got "une bande longitudinale suturale noiratre".
I come back to this determination of Jerome because with this big brown triangular patch common to the suture of the elytra, it must be Ocularia grisescens or Ocularia collarti according to the definition given in Breuning, Longicornia, 1950: 265-266