Crematogaster quadriruga

Density is the draw here. The workers are exceptionally small, so a built-up colony reads as a fine, shimmering mass of ants rather than a row of separate bodies, a strikingly different look from most starter species. A single queen keeps founding and early management simple, and as a fully tropical South American ant it stays active all year with no winter rest to manage. It grows into a large display colony for keepers who prize sheer numbers and movement over body size, and the acrobat gaster-flip is still on show. The mild sting is not a concern in handling.

A sugar-first omnivore built on small bodies: foragers tend honeydew-producing bugs and take nectar, while small insect prey feeds the brood. A steady carbohydrate source keeps the workers active and protein moves the larvae along.

★★★ readily · ★★ moderately · ★ occasionally · ✗ not eaten

Keep the founding queen in a test tube until her first workers appear. As the colony grows, move it to a small humid nest, ytong or hybrid kept around 65-80%, and because the workers are minute at under 2 mm, pick fine mesh or tight tolerances so they cannot creep out. Add an arena with a twig or cork, since these tropical acrobat ants climb readily. Apply a fluon (PTFE), oil, or talc-and-water barrier on the rim and seal every join. Match it to an ANTonTOP formicarium or beginner kit as the colony develops.

These tropical ants like it warm, so hold the nest at 24-27 °C and the arena a little warmer at 25-29 °C, with nest humidity of 65-80% and the arena at 55-70%. A cooler 24 °C side beside a warm 29 °C side lets the ants choose. There is no cold season for this Brazilian species, so keep warmth and humidity stable and feed continuously through winter.

Numbers climb visibly because the workers are so small, and with steady warmth and protein the colony pushes toward 20,000. Brood runs about 5-7 weeks egg to adult, so the rising count is easy to follow. You receive a single queen with her workers and brood at the colony’s current stage.

• The genus is known as the acrobat or cocktail ant for the raised gaster, and the Saint Valentine ant for its heart shape.
• Workers here are among the smallest acrobat ants at 1.4-2 mm, yet colony size is unaffected, since worker size and colony size run independently in Crematogaster.
• The overhead flip comes from the postpetiole attaching to the top of the gaster, letting the abdomen arch forward over the body.
• The acrobat sting is blunt and spatulate, so venom is wiped onto a rival rather than injected.
• Like its relatives it farms honeydew, defending sap-feeding bugs in return for their sugary droplets.

Is Crematogaster quadriruga good for beginners?

Yes. It is rated Beginner, founds claustrally, and is a single-queen species that is easy to manage; just note the very small workers when choosing equipment.

Does this tiny Brazilian acrobat ant need a winter rest?

No. It is a tropical Brazilian species and stays active all year, so keep warmth and feeding steady with no cooling period.

Does Crematogaster quadriruga sting or bite?

It has a mild sting and is not aggressive; acrobat ants are gentle and pose no concern to keepers.

How big does the colony get?

Up to 20,000 workers at maturity, making for a dense, active display colony.

How big is the queen?

The queen measures 6-7 mm, while the workers are tiny at just 1.4-2 mm.

How fast does it grow?

Fast. Crematogaster build quickly with stable warmth and regular protein, and the small workers make the rising numbers easy to see.

What do they eat?

Mostly sugars (sugar water, nectar, jelly) plus small insect protein such as flies and crickets. Seeds are not eaten.

Will the ants arrive alive?

Yes. We ship live with a live-arrival guarantee, add a heat or cold pack for the season, and dispatch within 24 h with tracking.

Escape prevention. Coat the inner rim of every open arena with fluon (PTFE), or use talc-and-water or an oil barrier as a backup, and keep a tight, fine-mesh lid on top. Check the barrier regularly, since dust, condensation and feeding debris break a fluon line over time. Keep tubing connectors tight and seal any gaps in the nest.

Keeping reminders. Always offer fresh water and never let the nest dry out completely. Give carbohydrates continuously and protein a few times a week, and remove uneaten insect prey within 24 hours before it moulds. Keep the formicarium out of direct sunlight and away from constant vibration, which stresses a young colony. A water-filled test tube plugged with cotton makes an ideal spare incubator whenever you need one.

Before you buy – do not rehouse too early. Have a test-tube setup or a small formicarium with an outworld and a working barrier ready before your colony arrives. A founding colony grows slowly at first, which is normal. Moving a small colony into a large nest too soon invites mould, mites and stress, and the workers die off one by one. Keep the colony in its open test tube on the arena, plug the nest entrance with cotton, and open up the next chambers only once the colony fills roughly 10-15% of the space.

What we ship. Every colony ships with a live-arrival guarantee, backed by our 24h unboxing-video guarantee: if the queen does not arrive alive, we reship free. Parcels travel with DHL, InPost (PL) or EMS, with a heat or cold pack to suit the season, packed discreetly and securely. We ship across the EU and worldwide, with free shipping over the Europe threshold.