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Horisme vitalbata
Motorway rest area in open country, mostly agricultural fields.
I only found this which shows North America only http://www.boldsystems.org/index.php/Tax...
By the way, this was in Southern France, not Spain.
As J was saying about other species, they can look identical but have different scientific names in different parts of the world.
Please confirm ID, I'm not even sure if they live in Spain... couldn't find anything giving it's world range. Sure looks like a good match though!