---

Hmmm, Spanish Machimus species are hard to identify (i haven't found a key yet that includes all endemic species) i would think the hypopygium does not fit M. gonatistes (http://www.robberflies.info/keyger/images/800/Asilinae/Machimus/gonatistes_m1_11_COGG.jpg). To me M. fimbriata is an option but that description doesn't fit entirely either. In short, i'm puzzled as usual