I don’t mean to sound dismissive, because this is potentially another non-trivial health issue to consider for anyone who will spend days and days walking outside in Spain. It is a vector for West Nile virus.
The new invasive mosquito species spreading ‘like an oil stain’ in Spain
Scientists warn the ‘Aedes japonicus’ has great potential to expand because it can adapt to cold weather and breed “in a wide range of aquatic habitats”
english.elpais.com