How big is Pheidole pallidula?

Queen: 7-9 mm — Workers: 2-5 mm (dimorphic).

How long does a Pheidole pallidula queen live?

A Pheidole pallidula queen lives approximately 10-15 years.

How does Pheidole pallidula found a colony?

Foundation type: Claustral — Polygynous: Variable.

What temperature and humidity does Pheidole pallidula require?

Temperature: 24-28°C — Humidity: 40-60%.

Is Pheidole pallidula suitable for beginners?

Difficulty level: 3/5 (intermediate).

Pheidole pallidula

Scientific name

Pheidole pallidula

Origin

Mediterranean (southern Europe, North Africa)

Natural climate

Dry Mediterranean

Queen size

7-9 mm

Worker size

2-5 mm (dimorphic)

Queen lifespan

10-15 years

Founding

Claustral

Polygynous

Variable

Diet

Seeds, insects

Hibernation

Yes (moderate)

Humidity

40-60%

Temperature

24-28°C

Max colony size

10,000-30,000

Difficulty

Spectacular dimorphism

Pheidole pallidula is a Mediterranean species marked by a very pronounced dimorphism between two worker castes: the minors (2-3 mm) that do most of the work, and the majors (4-5 mm) with an enormous head almost as big as their thorax. These big-headed soldiers are tasked with crushing seeds and defending the colony.

A semi-granivorous species like Messor, it enjoys seeds but also dead insects and honeydew.

Social polymorphism

Dimorphism in Pheidole is one of the most studied examples of morphological differentiation within a single colony. Soldiers aren’t born by chance: it’s the amount and type of food given to the larvae that determines their fate (minor or major).

Founding

Nuptial flight in summer (June-August) after a storm. Fast claustral founding: 5-8 weeks for the first workers (minors only at first; the majors appear later when the colony is larger).

Explosive growth

Pheidole pallidula has one of the fastest growth rates among European species. In 3 years, a colony can reach 5000 workers. Plan for a large modular nest.

Conditions

Warmth (24-28°C in summer), moderate hibernation (3 months at 10-12°C), medium humidity. Plaster, Ytong or packed-soil substrate.

Feeding

Small seed mix for Pheidole

A varied mix of small seeds (chia, poppy, fonio) suited to the size of Pheidole.

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Frequently asked questions

How big is Pheidole pallidula?: Queen: 7-9 mm — Workers: 2-5 mm (dimorphic).
How long does a Pheidole pallidula queen live?: A Pheidole pallidula queen lives approximately 10-15 years.
How does Pheidole pallidula found a colony?: Foundation type: Claustral — Polygynous: Variable.
What does Pheidole pallidula eat?: Diet: Seeds, insects.
Does Pheidole pallidula need a diapause (hibernation)?: Diapause: Yes (moderate).
What temperature and humidity does Pheidole pallidula require?: Temperature: 24-28°C — Humidity: 40-60%.
How large does a Pheidole pallidula colony grow?: Colony size: 10,000-30,000.
Is Pheidole pallidula suitable for beginners?: Difficulty level: 3/5 (intermediate).