Melophorus turneri

Nuptial Flight Calendar

Flight months: Jan, Feb, Mar, Oct, Nov, Dec

Few ants embody the resilience of arid Australia quite like Melophorus turneri, a member of the aptly named “furnace ants” that forage even under the blistering midday sun. First described from Western Australia by Forel (1910), this species is now known to range across a broad swathe of the interior, bounded roughly by 115°E to 145°E and 19°S to 35°S (AntWeb; AntWiki). Queens are robust at 8–10 mm, while workers display striking polymorphism, with minor foragers of just 4 mm and broad‑headed majors reaching 8 mm. The colony, which seldom exceeds 5,000 individuals, also produces repletes—specialised workers that distend their abdomens with liquid carbohydrates, functioning as living larders. This adaptation, shared with the famous honeypot ants, allows the colony to survive in an environment where food and water can be unpredictable, and the sight of translucent golden repletes hanging from the ceiling of a nest chamber is one of the principal reasons keepers are drawn to this species.

Given these exacting natural habits, M. turneri sits at an intermediate care level, best suited to hobbyists who have successfully maintained a moderately demanding ant species before. While it does not require a hibernation period—simplifying year‑round keeping—it does demand strict attention to its thermal and humidity envelope. Beginners may find the requirement for sustained high temperatures and extremely low humidity challenging to balance with the micro‑scale moisture gradients a growing colony needs. However, for the keeper who can offer a dedicated, heated setup, the colony’s activity pattern is reliably diurnal and visible, and the gradual appearance of repletes provides a constantly unfolding spectacle that rewards careful stewardship. Claustral founding also means a newly mated queen needs little beyond solitude and warmth, making the early stages straightforward before the real environmental control kicks in.

Housing must mirror the sandy plains and gibber deserts of the colony’s natural range. A temperature gradient from 22 °C to a basking spot of 38 °C should be maintained, as these ants genuinely thrive in heat that would stress other species—indeed, Andersen (2007) highlights the genus Melophorus as a dominant lineage of thermophilic ants in arid Australia. Humidity should be kept decidedly low, between 30% and 60%, with a dry foraging arena and a well‑ventilated nest. Many successful keepers use a ytong or plaster nest block with a small, restricted water source at one end, allowing the ants to choose their preferred zone while preventing any build‑up of condensation. A fine sand or sandy‑loam substrate in the outworld not only facilitates natural digging behaviours but also helps maintain a dry microclimate, though any loose substrate must be carefully contained to prevent escapes. Avoid consistently damp setups—excess moisture invites mites and fungal pathogens that can quickly overwhelm a desert‑adapted colony.

Diet is the twin engine of colony growth and replete development. Protein fuels brood production, and M. turneri will eagerly accept small crickets, fruit flies, mealworms, and other soft‑bodied insects; offering freshly killed or pre‑frozen prey is safer and just as effective as live feeding for a young colony. Carbohydrates are equally critical: a steady supply of sugar water, honey, or a commercially available ant nectar keeps workers active and, critically, provides the feedstock for repletes to sequester. Repletes are essentially mobile syrup tanks, so once the colony surpasses a few dozen workers, you may notice some individuals gradually swelling after a bout of heavy carbohydrate feeding. Water should be available at all times via a cotton‑plugged test tube or a small drinking station in the outworld, but never allowed to flood the nest, as that would counteract the dry conditions required.

One of the most convenient aspects of keeping M. turneri is the complete absence of a hibernation requirement. In nature, activity occurs throughout the warmer months, and the colony does not enter any dormant phase in winter—the recommended temperature range of 22–38 °C year‑round keeps them foraging, rearing brood, and filling repletes without interruption. If your room temperatures dip below 22 °C during cooler months, a heating cable or lamp is necessary to maintain the minimum, but there is no need to artificially simulate a cold period. This continuous activity makes the colony more responsive to feeding and observation, though it does mean the keeper must remain vigilant for signs of over‑heated or dehydrated ants if the setup accidentally dries out completely.

When your newly mated queen arrives—typically in a test‑tube setup with a water reservoir—the first few weeks are a lesson in patience. Keep her in darkness at around 25–28 °C and resist the urge to check more than once a week; as a claustral founder, she will metabolise her wing muscles to raise her first batch of eggs without any external food. Once the first nanitic workers eclose, you can attach the test tube to a small foraging arena, but do so with care: expose the colony to light gradually, as a sudden change can stress the queen. For the first feeding, offer a tiny droplet of sugar water on a slip of paper and a freshly killed fruit fly or cricket leg. Watch closely to see if foragers discover the food within a few hours—they typically do—and then remove any uneaten protein after 24 hours to prevent spoilage. During these early days, the biggest risk is over‑hydration; resist the impulse to add water to the nest area, and instead maintain the tube’s original reservoir until the colony has fully moved into a permanent formicarium. The first major workers and eventually the repletes will appear once the colony exceeds a few hundred workers and has a reliable carbohydrate supply, so a little sustained attention now will be amply rewarded with one of the most charismatic displays in ant keeping.