Genus Centistes Haliday, 1835

Leiophron subg. Ancylus Haliday, 1833 . Ent. Mag. 1:261. Preocc. By Mueller, 1774. Type-species: Leiophron (Ancylus) cuspidatus Haliday [Dublin]. Desig. by Viereck, 1914.

Leiophron subg. Centistes Haliday, 1835 . Ent. Mag. 3 -462. Type-species: Leiophron (Ancylus) cuspidatus Haliday. Monotypic. Ancyllus Haldeman, 1842 . Proc. Acad. Nat. Sci. Phila. 1:191. N. name for Ancylus Haliday. Gray (1821) also proposed the name Ancyllus, but only as an emendation of Ancyllus Mueller.

Syrrhizus Foerster, 1862 . Verh. Naturh. Ver. Preuss. Rheinl. 19:254. Type species: Syrrhizus delusorius Foerster. Orig. desig. Synon. by van Achterberg, 1977, treated as a subgenus of Centistes .

Ancylocentrus Foerster, 1862. Verh. Naturh. Ver. Preuss. Rheinl. 19-254. Type-species: Ancylus excrucians Haliday. Orig. desig. Synon. by van Achterberg, 1977, treated as a subgenus of Centistes .

Euphoridea Ashmead, 1900. Proc. U.S. Natl. Mus. 23:116. Type-species: Euphoridea claripennis Ashmead. Orig. desig. Synon. by Muesebeck, 1936.

Liosigalphus Ashmead, 1900, Proc. U.S. Natl. Mus. 23:125. Type-species: Liosigalphus politus Ashmead Orig. desig. Synon. by Muesebeck, 1936.

Diagnosis (adapted from Shaw (1985)): 3RSb reaching apex of the wing, or at least marginal cell longer than stigma; tergum 1 subsessile, basally half as wide as propodeum (Fig. 19); laterope present as deep basal pit; petiolar spiracles anterior to middle; lateral fold of tergum 2 absent; mesopleural sculpture variable, coarse to smooth; precoxal sulcus variable, distinct to absent; mesonotum grading into scutellar sulcus, no distinct suture; scutellar disc punctate smooth; vein (RS+M) variable, entirely present to absent, sometimes only partly present apically (Figs 21–25); M+CU either reduced into a short stub or completely absent; dorsope absent; suture between laterotergites 2+3 absent; ovipositor broad and curved (Fig. 6); ovipositor sheaths densely setose; vein M either reduced into a short stub or completely absent; mesonotal sculpture variable, notauli sculptured to totally smooth, sometimes notauli only partly present anteriorly; pronotum variable, sculptured to smooth; scutellar sulcus crosscarinae variable, distinct to totally smooth.