head
head heart-shaped
head heart-shaped
The head of the soldier is somewhat heart-shaped with the evenly rounded posterolateral lobes bulging laterally and the head attenuating anteriorly. Used in Antkey to separate majors of Pheidole megacephala from other majors of other Pheidole.
head longer than wide
head longer than wide
head longer than wide (Pheidole minor)
wooly hairs absent
wooly hairs absent
The head of soldier with sparse amount of short and blunt hairs, few of which overlap. Used in Antkey to separate Atta sexdens from Atta cephalotes
head covered in punctate microsculpture
head covered in punctate microsculpture
The head is covered in punctate microsculpture, giving it a dull appearance. Used in Antkey to separate Pheidole species.
head subquadrate
head subquadrate
The head is subquadrate, weakly longer than wide, and with a more flat posterior margin. Used in Antkey to separate the minor worker of Pheidole teneriffana from that of Pheidole fervens and Pheidole obscurithorax.
head shape not triangular
head shape not triangular
The head shape is approximately ovoid or subrectangular, but never triangular. Used in Antkey to separate myrmicine genera.
head length weakly longer than head width
head length weakly longer than head width
The head length is weakly longer than head width. Used in Antkey to separate majors of Pheidole fervens from those of Pheidole teneriffana.
head shape triangular
head shape triangular
The head shape is approximately triangular, with the posterior margin distinctly broader than the anterior margin. Used in Antkey to separate myrmicine genera.
head smooth and shining
head smooth and shining
The head is smooth and shining, lacking punctation. Used in Antkey to separate Pheidole species.
head smooth and shining
head smooth and shining
The head smooth and shiny, not covered by hexagonal microsculpture. Used in Antkey to separate Atta cephalotes from Atta sexdens.