Asilidae
Asilidae is a family known as assassin flies and also robber flies. In Portuguese the name goes as "moscas assassinas" and in Castellano as "moscas asesinas". Asilids are usually very strong and, in general, sport short and stout proboscis. The asilids used to perch on tips of slender twigs of shrubs and trees. As of October 2015, there are 56 known genera for Iberian Peninsula [Almeida, 2015]; in the world, there are 813 valid genera and 7194 species known [Geller-Grim, 2014]. It features one of the biggest families in Brachycera subordo. Asilids used to be present in arid to semi-arid biomes.
Asilids feature a very dense moustache under gena, which is the mystax. The last term comes from the Greek mystakos meaning "moustache" or "upper lip".
Pierre André Latreille (29 November 1762 – 6 February 1833) was a French zoologist, specialising in arthropods, and he was the authority for establishing the family Asilidae in 1802.