Veromessor pergandeii

Description

Veromessor pergandeii – desert harvesters that store grain like pros

Veromessor pergandeii is one of those species you’ll appreciate most if you’re into dry, desert-style setups and ants that really get stuck in. Gathering, sorting, carrying and storing seeds is their daily routine. In a well-set-up formicarium, they can look like a small logistics team: they map out routes, carry seeds to the pantry and keep the nest tidy. They are a great choice for keepers who want a North American grain-eater and appreciate ‘above-ground’ activity.

Detailed description of Veromessor pergandeii

In the wild, Veromessor pergandeii is found in the arid and semi-arid regions of the south-western United States and northern Mexico. These are harvester ants, or grain-eaters, which thrive in a climate where food is not always plentiful. Their strategy is therefore simple and ingenious: they gather what ‘the desert provides’ – seeds, small plant fragments and sometimes protein – and turn their nest into a storehouse.

In breeding, they thrive best at temperatures of 24–30°C, with a relatively dry and well-ventilated arena and a nest with controlled humidity in just one zone. This is important because leafcutter ants need dry storage areas to prevent the grains from going mouldy. If the nest is too damp, the ants start carrying the grains round in circles or take them out into the arena, which is a sign that the microclimate needs to be improved.

The colonies are active, and their behaviour around the seeds is highly entertaining: sorting, stacking, transporting, and in many cases also crushing and preparing food. This is not a species that ‘sits in its nest’ – provided there is plenty of food and the surface is dry, there is often a lot of activity to be seen.

The benefits of Veromessor pergandeii

• a desert-style setup, a dry environment, easier to maintain humidity and cleanliness

• Some fascinating behaviours of grain-eating birds: storage, sorting and logistics

• a lot of activity in the ring, especially when the seeds are thrown

• a simple feeding plan: grains as the basis, protein occasionally

• a great choice for those who prefer “American harvesters” to classic Messors

How to practise this genre

Arena

This is a desert species, so the enclosure should be dry. Sand or fine grit works very well. It’s a good idea to provide a bowl of seeds to keep things tidy, but some keepers prefer to scatter a few seeds around the enclosure, as this makes it easier to observe their natural foraging behaviour.

Socket

A silo with localised humidification works best. One section can be slightly damp, whilst the rest should remain drier to prevent the grain stores from developing mould.

Feeding

• grains: staple grains, mixtures for harvesters, millet, canary seed, small seeds

• protein: occasionally, mainly when there is a larger amount of spawn, in small portions

• water: constant access via a drinking trough

If you’re using protein, remove any leftovers after 24 hours. With a dry setup, this also reduces the risk of mites.

If you’re looking for ants that build proper food stores, thrive in a dry, desert climate and display their daily logistics in full view, Veromessor pergandeii is an excellent choice. This species is a joy to watch as they work with grains and fits very well into desert-themed ant farm setups.