sculpture
rugae mostly longitudinal
rugae mostly longitudinal
The cephalic sculpture of Myrmica rubra is characterized by long longitudinal carinae that rarely intersect. Contrasts with the strongly reticulated cephalic sculpture of Myrmica specioides.
rugae strongly reticulated
rugae strongly reticulated
The cephalic sculpture of Myrmica specioides is strongly rugoreticulate and characterized by longitudinal carinae that are frequently intersected by shorter transverse carinae. This character state contrasts with the predominately longitudinal cephalic carinae of Myrmica specioides that rarely intersect.
gaster with furrows
gaster with furrows
First segment of the gaster (abdominal segment 3) with deep parallel longitudinal furrows running the length of the segment. Used in Antkey to separate Gnamptogenys from other genera.
gaster lacking furrows
gaster lacking furrows
First segment of the gaster (abdominal segment 3) variously sculptured, but never with deep parallel longitudinal furrows running the length of the segment. Used in Antkey to separate various other genera from Gnamptogenys.
head dull with microsculpture
head dull with microsculpture
The head and body appear dull and are covered by hexagonal microsculpture. Used in Antkey to separate Atta sexdens from Atta cephalotes.
head finely striate
head finely striate
head finely striate
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 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.
waist strongly punctate
waist strongly punctate
The petiole and postpetiole are covered on all surfaces by a punctate ground sculpture, giving them dull appearances. Used in Antkey to separate the minor worker of Pheidole obsurithorax from that of Pheidole fervens.