Names
| English name | Orange-horned Tarantula Hawk | 
| Valid name | Pepsis ruficornis (Fabricius, 1775) | 
| Synonym | Pepsis saphirus Palisot de Beauvois, 1805 | 
Classification
- 
                                            Animalia [kingdom]
                        Animals            
- 
                                    Arthropoda [phylum]
                        Arthropods            
- 
                                    Hexapoda [subphylum]
                        Hexapods            
- 
                                    Insecta [class]
                        Insects            
- 
                                    Hymenoptera [order]
                        Ants, Bees, Wasps and Sawflies            
- 
                                    Aculeata [suborder]
                        Ants, Bees and Stinging Wasps            
- 
                                    Pompiloidea [superfamily]
                        Spider Wasps, Velvet Ants and allies            
- 
                                    Pompilidae [family]
                        Spider Wasps            
- 
                                    Pepsis Fabricius, 1804 [genus]
                        Tarantula Hawks            
- 
                                    Pepsis ruficornis (Fabricius, 1775) [species]
                        Orange-horned Tarantula Hawk            
 
 - 
                                    Pepsis ruficornis (Fabricius, 1775) [species]
                        Orange-horned Tarantula Hawk            
 
 - 
                                    Pepsis Fabricius, 1804 [genus]
                        Tarantula Hawks            
 
 - 
                                    Pompilidae [family]
                        Spider Wasps            
 
 - 
                                    Pompiloidea [superfamily]
                        Spider Wasps, Velvet Ants and allies            
 
 - 
                                    Aculeata [suborder]
                        Ants, Bees and Stinging Wasps            
 
 - 
                                    Hymenoptera [order]
                        Ants, Bees, Wasps and Sawflies            
 
 - 
                                    Insecta [class]
                        Insects            
 
 - 
                                    Hexapoda [subphylum]
                        Hexapods            
 
 - 
                                    Arthropoda [phylum]
                        Arthropods