Help identify this red/black Vietnamese insect
Dasypogon is a genus of robber flies in the family Asilidae.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera ,
Family: Asilidae
Tribe:Dasypogonini
Genus:Dasypogon.

84 species belong to the genus Dasypogon. Among these, this one is Asilidae Dasypogon diadema.