Mystacagenia, Evans, 1973

Cambra, Roberto A., Wasbauer, Marius S. & Corro-Chang, Patricia, 2020, A new species of spider wasps (Hymenoptera: Pompilidae) from Panama Mystacagenia kimseyae sp. nov., Zootaxa 4729 (1), pp. 147-150 : 147-148

Key to species of Mystacagenia females (males unknown)

1. Vertex strongly elevated above dorsal eye margin, with thick curved white setae behind ocelli ( Figs 2, 6 ); pronotum disc sloping, with no flat dorsal surface; frons white in color; hindwing with subapical band …................ M. albiceps Evans

- Vertex weakly arched above dorsal eye margin, without prominent setae ( Figs 3 , 7–9 ); pronotum disc almost flat, broadly angulate behind ( Fig. 7 ); frons largely ferruginous or orange-brown; hindwing hyaline …............................. 2

2. Mandible and mandibular beard dark brown ( Fig. 1 ); forewing hyaline, with a broad faint brown band ( Fig. 8 ); apical margin of clypeus slightly sinuate ( Fig. 1 ) ....................................... M. kimseyae Cambra & Wasbauer , sp. nov.

- Mandible and mandibular beard white ( Fig. 3 ); forewing hyaline, with two or three strong brown bands ( Figs 4–5 ); apical margin of clypeus broadly convex or slightly sinuate ….......................................................... 3

3. Apical margin of clypeus broadly convex ( Fig. 3 ); metasoma fuscous except segment one dark orange-brown ( Figs 4–5 ). Panama ….......................................................................... M. elegantula Evans

- Apical margin of clypeus slightly sinuate; metasoma with different color pattern. South America ….................... 4

4. Metasoma mostly fuscous except basal and apical segments white; forewing hyaline, with a strong band below the stigma and a narrow band over the transverse median vein; forewing length 5.0 mm …........................... M. belulla Evans

- Metasoma with all segments irregularly blotched with brown and black; forewing opaque whitish, crossed by three brown bands, outer two connected above; forewing length 7.5 mm ….................................. M. variegata Evans

Figures

FIGURES 1–6. 1. Mystacagenia kimseyae sp. nov., holotype, ♀. 2, 6. M. albiceps, ♀. 3–5. M. elegantula, holotype, ♀. 1–3. Head, frontal view. 4, 6. Habitus, lateral view. 5. Habitus, dorsal view.

FIGURES 7–9. Mystacagenia kimseyae sp. nov., holotype, ♀. 7. Head and mesosoma, dorso-lateral view. 8. Head and wings, frontal view. 9. Habitus, dorso-lateral view.