frontal lobes
ridge not surrounding insertion
ridge not surrounding insertion
antennal insertion at least partially covered by frontal lobe
sockets close to clypeus
sockets close to clypeus
antennal socket to clypeal margin distinctly less than minimum scape width (Technomyrmex)
frontal lobes short, broad, rounded
frontal lobes short, broad, rounded
frontal lobes short and broad, distinctly rounded anteriorly (Myrmica)
frontal lobes broad
frontal lobes broad
frontal lobes broad (Ponerinae)
frontal lobes narrow
frontal lobes narrow
frontal lobes narrow (Ponerinae)
frontal lobes narrow
frontal lobes narrow
frontal lobes narrow, distinctly longer than broad and tapering anteriorly (Myrmica)
frontal lobes obscure face
frontal lobes obscure face
frontal lobes obscure face between mandible and eye
frontal lobes close together
frontal lobes close together
frontal lobes relatively close together so that the posteromedian portion of the clypeus, where it projects between the frontal lobes, is at most only slightly broader than one of the lobes
frontal lobes far apart
frontal lobes far apart
frontal lobes relatively far apart so that the posteromedian portion of the clypeus, where it projects between the frontal lobes, is much broader than one of the lobes
frontal lobes relatively narrow
frontal lobes relatively narrow
frontal lobes relatively narrow