This study broadens the range of host, behavioral, and ecological information for 65 pompilid taxa from North America: Pepsis sp., Entypus fulvicornis, E. unifasciatus californicus, E. u. unifasciatus, Priocnemis (Priocnemissus) minorata, Priocnemis (Priocnemis) cornica, P. (P.) germana, P. (P.) scitula relicta, Caliadurgus fasciatellus alienatus, Dipogon (Deuteragenia) c. calipterus, Dipogon (D.) s. sayi, Phanagenia bombycina, Auplopus a. architectus,A. architectus metallicus,A. bellus,A. caerulescens subcorticalis, A. carbonarius, A. m. mellipes, A. mellipes variitarsatus, A. nigrellus, Ageniella (Priophanes) arcuata, A. (Ageniella) accepta, A. (A.) coronata, A. (A.) euphorbiae, A. (Ameragenia) salti, Aporus (Plectraporus) hirsutus, Evagetes p. padrinus, Agenioideus (Agenioideus) humilis, Sericopompilus apicalis, S. neotropicalis, Episyron b. biguttatus, E. conterminus cressoni, E. Oregon, E. quinquenotatus hurdi, E. q. quinquenotatus, E. snowi, Poecilopompilus a. algidus, P. algidus coquilletti, P. algidus willistoni, P. i. interruptus, Tachypompilus f. ferrugineus, T. u. unicolor, Anoplius (Lophopompilus) aethiops,A. (L.) atrox,A. (L.) cleora,A. (Notiochares) lepidus atramentarius, A. (Arachnophroctonus) americanus trifasciatus,A. (A.) insignis bahamas, A. (A.) nigritus,A. (A.) semicinctus, A. (A.) semirufus, A. (Pompilinus) insolens, A. (P.) marginatus complex, A. (P.) tenebrosus, A. (Anoplius) depressipes, A. (A.) imbellis, Ammosphex a. angularis, A. a. anomalus, A. s. solonus, Arachnospila arctus, A. fumipennis eureka, Aporinellus completus, A. medianus, A. t. taeniatus, and A. yucatanensis. New host spider families are introduced for Entypus unifasciatus (Pisauridae), Priocnemis minorata (Dysderidae), P. germana (Miturgidae), P. scitula (Miturgidae, Philodromidae), Auplopus architectus (Miturgidae), A. bellus (Anyphaenidae), A. mellipes (Anyphaenidae, Miturgidae), Ageniella coronata (Lycosidae), A. euphorbiae (Hahniidae, Anyphaenidae), A. salti (Anyphaenidae), Sericopompilus neotropicalis (Theridiidae), Tachypompilus unicolor (Sparassidae), Anoplius insolens (Thomisidae), A. imbellis (Pisauridae, Amaurobiidae), Ammosphex angularis (?Anyphaenidae, Clubionidae, Corinnidae, Philodromidae), A. anomalus (Lycosidae, Gnaphosidae), A. solonus (Gnaphosidae), Arachnospila arctus (Salticidae), A. fumipennis (?Philodromidae), and Aporinellus medianus (Miturgidae). The families Hahniidae and Sparassidae are reported as prey of North American Pompilidae for the first time. Numerous new host spider genera and species are recorded for many of the pompilid species.