Key to Aenictus currax group species

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The following worker key is based on Jaitrong, W. & Yamane, S. 2011. Synopsis of Aenictus species groups and revision of the A. currax and A. laeviceps groups in the eastern Oriental, Indo-Australian, and Australasian regions (Hymenoptera: Formicidae: Aenictinae). Zootaxa, 3128, 1–46. PDF

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1

2

return to couplet #1

  • Pronotum anteriorly produced into a pair of horn-like protuberances (Malay Peninsula, Borneo, Sumatra) . . . . . Aenictus cornutus
Aenictus cornutus casent0249267 h 1 high.jpg
Aenictus cornutus casent0249267 p 1 high.jpg

3

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4

return to couplet #3

  • Declivity of propodeum feebly convex, not encircled with a thin rim (Vietnam, Laos, Thailand) . . . . . Aenictus parahuonicus
Aenictus parahuonicus casent0903691 h 1 high.jpg
Aenictus parahuonicus casent0903691 p 1 high.jpg
  • Declivity of propodeum shallowly concave, and encircled with a thin rim . . . . . 5

5

return to couplet #4

  • Entire propodeum and petiole with dense micropunctures (Thailand, Malay Peninsula, Borneo, Philippines) . . . . . Aenictus gracilis
  • Propodeal and petiolar dorsum smooth and shiny . . . . . 6

6

return to couplet #5

  • Head with 2 long standing hairs on vertex; pronotal hairs relatively short (0.23–0.25 mm); antenna relatively short (SI 75–85) (Borneo) . . . . . Aenictus pfeifferi
  • Head with some shorter standing hairs in addition to two long hairs on vertex; pronotal hairs relatively long (0.38–0.40 mm); antenna relatively long (SI 97–100) (Sulawesi) . . . . . Aenictus wayani
Aenictus wayani casent0903690 h 1 high.jpg
Aenictus wayani casent0903690 p 1 high.jpg

7

return to couplet #1

  • Propodeum and petiole entirely sculptured (Australia) . . . . . Aenictus diclops
Aenictus diclops HT ANIC32-032139 head 63-Antwiki.jpg
Aenictus diclops HT ANIC32-032139 side 40-Antwiki.jpg
  • Propodeal and petiolar dorsa smooth and shiny (New Guinea) . . . . . 8

8

return to couplet #7

  • Concolorous dark reddish brown; antennal scape shorter than head width (SI 87–94) . . . . . Aenictus huonicus
  • Concolorous brownish yellow except for dark brown vertex; antennal scape as long as or slightly longer than head width (SI 100-104) . . . . . Aenictus currax
Aenictus currax casent0903748 h 1 high.jpg
Aenictus currax casent0903748 p 1 high.jpg