Key to genera and species of Neotropical Sapygidae

(Modified and updated from Pate (1947) and Hanson (2006)

1. Head with occipital carina. ( Huarpea Pate) ............................................................................................................ 2

- Head without occipital carina .................................................................................................................................. 6

2(1). T1 without yellow markings ..................................................................................................................................... 3

- T1 with yellow spots or stripes ............................................................................................................................... 4

3(2). Clypeus without yellow markings; S1 with yellow stripe. Brazil, Argentina .... H. wagneriella (du Buysson, 1904)

- Clypeus with yellow marking; S1 without yellow marking. Colombia ............................... H. colombiana sp. nov.

4(2). Head mostly red (mesoscutellum yellow). Argentina ........................................ H. burmeisteri (Gerstaecker, 1861)

- Head mostly black, with or without yellow ............................................................................................................ 5

5(4). Head with yellow spots; mesoscutellum black. Argentina ......................................... H. fallax (Gerstaecker, 1861)

- Head black with two small spots ferruginous behind ocelli; mesoscutellum yellow. Argentina ................................ ............................................................................................................................. H. paranensis (Gerstaecker, 1861)

6(1). Propodeum short, nearly vertical posterad, second submarginal cell of fore wing anteriorly longer than distally; vertex with small smooth area anterad of ocelli. (Araucania Pate). Chile ........... Araucania chilensis (Reed, 1930)

- Propodeum horizontal, second submarginal cell of fore wing anteriorly as long as distally; vertex without smooth area anterad of ocelli. Costa Rica ................................................................................................................... Sapyga