Trypoxylon is a genus of wasps in the family Crabronidae. All Trypoxylon species that have been studied so far are active hunters of spiders, which they paralyse with a venomous sting, to provide as food to their developing larvae. Depending on the species, they will either construct their own nest from mud or find cavities that already exist. These cavities can range from keyholes to nail holes to previously abandoned nests, and are generally sealed with mud to create cells for their larvae.

Worldwide distribution: The 634 species in this most speciose genus are found worldwide being represented in the Palearctic, Nearctic, Afrotropic (largest number of species in the Old World), Neotropic (highest number of species), Australasia (poorly represented) and Indomalayan realm.

Selected species: Main article: List of Trypoxylon species

Below is a list of selected species of Trypoxylon:

• Trypoxylon abditum Arnold, 1924
• Trypoxylon acutangulum Arnold, 1951
• Trypoxylon aegyptum Kohl, 1906
• Trypoxylon albipes F. Smith, 1856
• Trypoxylon attenuatum F. Smith, 1851
• Trypoxylon beaumonti Antropov, 1991
• Trypoxylon calvatum Say, 1837
• Trypoxylon clavicerum Lepeletier & Serville, 1828
• Trypoxylon collinum F. Smith, 1856
• Trypoxylon deceptorium Antropov, 1991
• Trypoxylon figulus (Linnaeus, 1758)
• Trypoxylon frigidum F. Smith, 1856
• Trypoxylon fronticorne Gussakowskij, 1936
• Trypoxylon kolazyi Kohl, 1893
• Trypoxylon kostylevi Antropov, 1985
• Trypoxylon lactitarse Saussure, 1842
• Trypoxylon latilobatum Antropov, 1991
• Trypoxylon medium Beaumont, 1945
• Trypoxylon megriense Antropov, 1985
• Trypoxylon minus Beaumont, 1945
• Trypoxylon politum Drury, 1773
• Trypoxylon rogenhoferi Kohl, 1884
• Trypoxylon rubiginosum Gussakowskij, 1936
• Trypoxylon scutatum Chevrier, 1867
• Trypoxylon syriacum Mercet, 1906