Ameragenia, Banks, 1945

Waichert, Cecilia, Colombo, Wesley Dondoni, Von Dohlen, Carol D. & Pitts, James P., 2018, Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil, Zootaxa 4403 (1), pp. 133-153 : 138-139

Key to the species of Ameragenia from Brazil (females)

1 Forewing maculated with dark bands or distinct dark spots..................................................... 2

- Forewing without maculations of dark bands or dark spots, if dark spot present, then very weak...................... 10

2 Integument black and rufous............................................................................. 3

- Integument entirely black............................................................................... 5

3 Clypeus large, apical margin with two median teeth; head and pronotum rufous; metasoma black with blue metallic reflections; forewing hyaline with two dark bands.................................................. A. sanguinolenta (Smith)

- Clypeus various; head black (clypeus rufous in A. fabricii ), pronotum various; metasoma various; forewing with or without dark bands........................................................................................... 4

4 Metasoma entirely rufous; mesosoma and head black; forewings with two dark bands, the one on the basal vein narrow.......................................................................................... A. similaris (Banks)

- Metasoma black; mesosoma entirely or partially rufous, head black, clypeus rufous; forewing with two dark bands, the most apical incomplete........................................................................ A. fabricii (Banks)

5 Forewing with dark spots partially covering cell 2M and fully covering cell 2Rs; cell 2Rs 0.69 X as long as 3 Rs; clypeus trap- ezoidal, slightly arched; fore tibia pale brown................................................ A. agitata (Smith)

- Forewing with one or two transversal dark bands; cells 2Rs and 3Rs different size; clypeus various; fore tibia black........ 6

6 Forewing with only one distinct dark band (sometime inconspicuous); silver setae covering integument on face and distal por- tion of propodeum..................................................................................... 7

- Forewing with two distinct dark bands..................................................................... 8

7 Mid and hind femur, and inner side of fore femur pale brown; absence of blue reflections on the hindwing venation and integu- ment................................................................................ A. rustica (Fabricius)

- Fore, mid and hind femur black; blue reflections on hindwing venation and integument................. A. zeteki (Banks)

8 Integument black without golden pubescence; antennae yellow or at least some segments yellow..................... 9

- Integument black with golden pubescence, except propodeum, which has silver pubescence; antennal segments all black.......................................................................................... A. banksii (Banks)

9 Clypeus black; antennal segments 7–10 yellowish............................................. A. citricornis (Fox)

- Clypeus pale brown; antennal segments entirely yellow........................................ A. pretiosa (Banks)

10 Integument black with fore, mid and hind tibia pale brown; forewing with a faint dark spot on cells 2Rs and 2M........ 11

- Integument black, tibia black; forewing various............................................................ 12

11 Integument with faint bluish reflections on head and metasoma; frons covered with silver scale-like setae from torulus to clypeus; clypeus trapezoidal................................................................ A. cleora (Banks)

- Integument without bluish reflections on head and metasoma; frons without silver scale-like setae; clypeus rounded............................................................................................... A. varipes (Fox)

12 Clypeus large, arched, anterior margin angulate medially......................................... A. clypeata (Fox)

- Clypeus truncate..................................................................................... 13

13 Legs and antennae entirely black; cell 2Rs about 0.65 X as long as 3Rs, tCu2 vein curved, very arched, as well as vein tCu1......................................................................................... A. thione (Banks)

- Legs and antennae black, tibia with yellowish coloration; cells 2Rs and 3Rs almost equal size............. A. serrula (Fox)