---

no idea about this, but if you want i can ask miguel Carles-Tolr?, spanish specialist and author of the catalogue of diptera from spain, portugal and andorra

there?s a book for spanish bombyliidae but from 196.. not actualized and with no keys, just a few descriptions.
I?ve foundt us? keys but really don?t suit here, they have lots of different species (by internet: http://www.hr-rna...%20key.htm)

maybe useful could be 2 more books; one for Mydidae and another for nemestrinidae, but (wow) 1913 and 1914 !

more reliable there is the book for Tabanidae in fauna Iberica, actual species, keys and drawings

good luck :)