Pogonomyrmex occidentalis

Name: Pogonomyrmex occidentalis
Origin: Western USA (prairies, steppes, semi-deserts)
Queen: approx. 10 – 12 mm
Workers: approx. 4 – 10 mm
Diet: Mainly seeds (harvester ants), additionally proteins (insects) for the brood
Humidity:
• Arena: 30 – 50 %
• Nest: 50 – 60 %
Temperature:
• Arena: 24 – 30 °C
• Nest: 25 – 28 °C
Hibernation: Yes, approx. 2–3 months at 10 – 15 °C
Nest type: Soil nests or Ytong/plaster nests with dry areas
Colony size: Several thousand workers

Advantages and Disadvantages of the species Pogonomyrmex occidentalis

Advantages:
Pogonomyrmex occidentalis is a very robust and fascinating species of harvester ant. Their colonies grow vigorously, and majors and soldiers are particularly impressive. Their characteristic behavior in collecting and storing seeds makes them an exciting species to observe.

Disadvantages:
The workers have a painful sting – caution is therefore important when handling them. In addition, they require a lot of space and large arenas, as they are very active and prone to escaping.

Keeping

During the founding phase, a test tube nest with a small feeding area is sufficient. Later, larger Ytong, plaster or soil nests, as well as spacious arenas, will be required. Pogonomyrmex occidentalis is extremely active and therefore needs a lot of room to roam.

Feeding

As true harvester ants, they primarily feed on seeds of various kinds (millet, grass seeds, chia, etc.). In addition, proteins in the form of small insects (e.g., crickets, flies, cockroaches) should be offered regularly.