Key to Females of the Genera of Brachycistidinae 1 Hindcoxa with longitudinal carina on inner margin (Fig. 2); occipital carina ventrolaterally angulate (Fig. 1) ................................................................... Colocistis Krombein ­ Hindcoxa without longitudinal carina on inner margin; occipital carina ventrolaterally evenly curved ................................................................................................................ 2 2 Scape apicolaterally lobed (Fig. 11); occipital and hypostomal carinae widely separated, separation as long or longer than length of hypostomal fossa; occipital carina obsolescent ventrally .................................................. Stilbopogon Mickel & Krombein ­ Scape cylindrical, not apicolaterally lobed (Fig. 12); occipital and hypostomal carinae usually separated by less than length of hypostomal fossa; occipital carina complete ventrally....................................................................................................................... 43 3 Mandible with inner margin below largest laterally projecting subapical tooth serrate or with three or more small teeth (Fig. 6) ........................................... Brachycistis Fox ­ Mandible with inner margin below largest laterally projecting subapical tooth smooth, without serrations or small teeth (Figs. 7, 9, 10)........................................................... 4 4 Mesopleuron strongly convex medially in dorsal view (Fig. 3); maxillary palpus about as long as hypostomal fossa .........................................Glyptacros Mickel & Krombein ­ Mesopleuron nearly flat or slightly concave medially in dorsal view (Fig. 4); maxillary palpus minute, considerably shorter than hypostomal fossa ............................. Genus A

Published as part of Kimsey, Lynn S., 2006, Competing Taxonomies: Reexamination of the female­based genera of Brachycistidinae (Hymenoptera: Tiphiidae), pp. 21-34 in Zootaxa 1211 on pages 32-33, DOI: 10.5281/zenodo.172480