Pheidole - Major Workers

Major Workers

The distinctive major workers have earned the genus Pheidole the nickname of "big headed ants." The major workers of a Pheidole colony, while they may look fierce, are often quite shy and are often the first to flee on any hint of danger. Interestingly, many Pheidole species are the prey of parasitoidal Phorid flies that lay their eggs on the major workers; the fly larvae grow mainly in the head capsules of the victims, eventually decapitating them, and probably would starve in the bodies of minor workers.

In most cases, the major workers are employed within the nest to break up large food items, or outside to carry large items, like seeds; many Pheidole species are ecologically important seed consumers ("harvesters").

Minor and major workers of P. purpurea
Minor worker
Minor worker, top
Major worker
Major worker, top

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