Key to Dinoponera workers

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This worker key is based on: Lenhart, P.A., Dash, S.T. & Mackay, W.P. 2013. A revision of the giant Amazonian ants of the genus Dinoponera (Hymenoptera, Formicidae). Journal of Hymenoptera Research 31, 119–164.

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Figure 1. Features of Dinoponera workers. A Head, frontal view B–C Occiput of head, oblique anterolateral view D–E Pronotum, lateral view F–H Petiole, lateral view. A–B Dinoponera longipes C Dinoponera hispida D Dinoponera gigantea. E–F Dinoponera mutica G Dinoponera hispida H Dinoponera lucida.

1

  • Antero-inferior corner of pronotum with distinct tooth-like process (Fig. 1D) . . . . . 2
  • Antero-inferior corner of pronotum without tooth-like process (Fig. 1E) . . . . . 4

2

return to couplet #1

  • Head (Fig. 12B), sides of petiole and terga 1 and 2 of gaster smooth and polished, integument with bluish luster (Fig. 12A); southeastern coast of Brazil . . . . . Dinoponera lucida
Dinoponera lucida casent0104920 profile 1.jpg
  • Head, lateral sides of the petiole and terga 1 and 2 of gaster finely micropunctate/scaled (Fig. 12B) . . . . . 3
Figure 12. Worker head, oblique antero-lateral view illustrating microsculpturing difference. A Dinoponera mutica (this smooth integument type is also found in Dinoponera lucida, Dinoponera longipes and Dinoponera hispida) B Dinoponera quadriceps (this rough integument type is also found in Dinoponera gigantea and Dinoponera australis).

3

return to couplet #2

  • Total body length under 3 cm; Bolivia, Paraguay, northern Argentina and southern Brazil . . . . . Dinoponera australis
Dinoponera australis casent0173381 profile 1.jpg
Dgiganteaantweb1014002 p 1 high.jpg

4

return to couplet #1

  • Body covered in bristle-like setae which are not flagellate (Fig. 1C); Pará, Brazil . . . . . Dinoponera hispida
  • Body covered in fine and flagellate setae (Fig. 1B) . . . . . 5

5

return to couplet #4

  • Appressed golden yellow pubescence present on frons (Fig. 1A); Colombia south to Perú to northern Brazil . . . . . Dinoponera longipes
Dinoponera longipes casent0004663 p 1 high.jpg
  • Pubescence absent from frons or not golden yellow . . . . . 6

6

return to couplet #5

  • Sides of head, lateral sides of the petiole and terga 1 and 2 of gaster finely micro-punctate/scaled (Fig. 12B); in profile antero-dorsal edge of petiole bulging (Fig. 1G); northeast Brazil . . . . . Dinoponera quadriceps
Dinoponera quadriceps casent0217519 p 1 high.jpg
  • Sides of head, sides of the petiole and terga 1 and 2 of gaster smooth, shiny and polished with no microsculpturing, integument with bluish luster (Fig. 12A); in profile petiole with even dorsal corners (Fig. 1F); eastern Bolivia, northern Paraguay and southwestern Brazil . . . . . Dinoponera mutica
Dinoponera mutica casent0260421 p 1 high.jpg