PALM group

  • Clypeus (Cly) and frontal triangle (∆fr) well developed
  • Frontal carinae (frc) sized the (∆fr) and posterior part of the Cly
  • PE and PPE distinct from gaster and never fused with it
  • Dorsal mesosome in 3 distinct parts: PN, MN, Pp
    Sting is functional
  • Whole Palearctic
  • Clypeus (Cly) absent and frontal triangle (∆fr) vestigial or absent
  • Antennal sockets laterally distant from antennal carinae
  • PE and PPE identical, distinct from gaster and never fused with it
  • Pronotum (PN) and Mesonotum (MN)
    are fused into a single structure. Sting is present and functional
  • South Palearctic
  • Clypeus (Cly) restricted and frontal triangle (∆fr) vestigial or absent
  • Cly narrow so that the antennal insertions are close to the anterior margin of the head
  • Propodeal stigma (Ppst) open and circular
  • Funiculus always: 11 articles
  • France and Japan
    • Pseudomyrmicinae
  • Clypeus (Cly) absent and frontal triangle (∆fr) vestigial or absent
  • Antennal sockets laterally put side by side with antennal carinae
  • PE and PPE identical, distinct from gaster and never fused with it
  • Pronotum (PN) and Mesonotum (MN) are fused into a single structure. Sting is present and functional
  • Funiculus always 11 articles
  • Japan :Tetraponera attenuata