Acanthosphex Fowler [H. W.] 1938:86 Masc. Prosopodasys leurynnis Jordan & Seale 1905. Type by original designation (also monotypic). •Valid as Acanthosphex Fowler 1938 -- (Poss & Eschmeyer 1978:404 [ref. 6387], Washington et al. 1984:440 [ref. 13660], Poss 1999:2357 [ref. 24796], Mandrytsa 2001:269 [ref. 25636], Allen et al. 2006:912 [ref. 29066], Imamura 2009:71 [ref. 30434], Fricke 2016:72 [ref. 34523], Motomura et al. 2017:69 [ref. 35490]). Current status: Valid as Acanthosphex Fowler 1938. Synanceiidae: Aploactininae.