Dimorphic-workers
Guides
Pheidole dentigula
Woodland Big-headed Ant
Pheidole dentigula is a species of big-headed ant in the genus Pheidole, first described by Smith in 1927. As with other members of this hyperdiverse genus, it exhibits a dimorphic worker caste system with minor workers and major soldiers. The species is native to North America and has been documented in woodland habitats.
Pheidole metallescens
Metallic Big-headed Ant
Pheidole metallescens is a species of big-headed ant in the genus Pheidole, first described by Emery in 1895. The species exhibits the characteristic dimorphic worker caste system typical of the genus, with minor workers and major workers (soldiers) possessing disproportionately large heads. Two subspecies are recognized: P. m. metallescens and P. m. splendidula. The species belongs to the diverse myrmicine ant tribe Attini.
Pheidole morrisii
Morris' Big-headed Ant
Pheidole morrisii is a species of big-headed ant in the genus Pheidole, first described by Forel in 1886. Like other members of this hyperdiverse genus, it exhibits the characteristic dimorphic worker caste system with minor workers and major workers (soldiers) bearing disproportionately enlarged heads. The species belongs to the myrmicine subfamily and is part of the tribe Attini.
Pheidole sitiens
Pheidole sitiens is a species of big-headed ant described by E.O. Wilson in 2003. As a member of the hyperdiverse genus Pheidole, it exhibits the characteristic dimorphic worker caste system with minor workers and major workers (soldiers) bearing disproportionately large heads. The species is part of the Attini tribe within Myrmicinae, placing it among the fungus-growing ants, though specific details about its biology remain poorly documented.