Key to doryline genera of the Oriental realm

AntWiki: The Ants --- Online

The following key is modified from Yamada et al. (2023) and is based on the generic descriptions and global key to genera of Dorylinae by Borowiec (2016).

1

  • Abdominal tergite VII (last visible tergite, pygidium), not armed with numerous differentiated stout chaetae (“peg-like setae”), at most with only a few pairs of cuticular projections (Figures A, B) .....2
  • Abdominal tergite VII armed with numerous stout chaetae (Figure C) .....3
Borowiec 2016

2

return to couplet #1

  • Abdominal segment III forms differentiated “postpetiole”, narrowly attached to segment IV (Figure A)..... Aenictus
  • Abdominal segment III not differentiated and broadly attached to segment IV (Figure B)..... Dorylus
Borowiec 2016

3

return to couplet #1

  • Abdominal segment III broadly attached to segment IV, without a conspicuous anterior constriction of segment IV (Figure A)..... Yunodorylus
  • Abdominal segment III at least weakly differentiated from segment IV, with a conspicuous anterior constriction of segment IV (Figure B) .....4
Borowiec 2016

4

return to couplet #3

  • Meso- and metatibiae each with two spurs (Figure A); most body surface with prominent costate sculpture

Chrysapace

  • Mesotibiae with a single spur (Figure B) or without spurs (Figure C) and metatibiae always with a single spur .....5
Borowiec 2016

5

return to couplet #4

  • Mesotibiae without spurs..... Simopone
  • Mesotibiae with a single spur .....6

6

return to couplet #5

  • Petiole (abdominal segment II) dorsolaterally marginate at least in anterior portion (Figure B); metacoxae usually with a conspicuously lamellate posterior flange (Figure D)..... Lioponera
  • Petiole (abdominal segment II) not conspicuously dorsolaterally marginate (Figure C); if petiole appearing marginate, metacoxae without a conspicuously lamellate posterior flange (Figure E) .....7
Borowiec 2016

7

return to couplet #6

  • Pronotum and mesopleuron completely fused, never with a deep cut of pronotomesopleural junction (Figures A, B) .....8
  • Pronotum and mesopleuron unfused, with a deep cut of pronotomesopleural junction (Figures C, D) .....9
Borowiec 2016

8

return to couplet #7

  • Constrictions present at anterior end of abdominal segments V and VI (Figure A)..... Zasphinctus
  • Constrictions absent at anterior end of abdominal segments V and VI (Figure B)..... Parasyscia
Borowiec 2016

9

return to couplet #7

  • Constrictions present at anterior end of abdominal segments V and VI (similar to couplet 8, Figure A) ..... Eusphinctus
  • Constrictions absent at anterior end of abdominal segments V and VI (similar to couplet 8, Figure B) .....10

10

return to couplet #9

11

return to couplet #10

  • Eyes conspicuous with more than 20 ommatidia; abdominal sternite IV normal without a whitish patch near the posterior edge..... Cerapachys
  • Eyes absent or perhaps vestigial with at most several weakly differentiated ommatidia; abdominal sternite IV with a unique whitish patch near the posterior edge (may be feeble)..... Eburopone

12

return to couplet #10

  • Abdominal tergite IV in lateral view folding over sternite IV and the anterior portion of sternite at least partly obscured (Figure B); abdominal segment III relatively wide in dorsal view and larger than the preceding abdominal segment II (petiole)..... Syscia
  • Abdominal tergite IV not folding over sternite IV and the anterior portion of the sternite visible (Figure A); abdominal segment III relatively narrow in dorsal view and similar in size to the preceding abdominal segment II (petiole)..... Ooceraea
Borowiec 2016

References