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Giant African Fruit Beetle (Mecynorrhina torquata)

Mecynorhina torquata

The Mecynorrhina torquata (Giant African Fruit Beetle). It is a titanic and heavy gem of terrariums: a majestic and very wide emerald-green or matte velvet beetle (up to 3.1 inches in size), decorated with geometric and very precise white bands on the wings (elytra). It belongs to the Cetoniinae subfamily (flower/fruit beetles), known for their spectacular and extremely buzzing flight (they fly without opening the hard elytra, unsheathing only the lateral membranous wings in an astonishing way). The male possesses a powerful and bizarre 'Y' shaped forked horn on the head, used to brutally drive rivals away from tree wounds from which sap flows. Breeding, although fascinating, requires huge quantities of hyper-specialized constantly decomposing substrate (Flake Soil / Rotten wood and Oak leaves) to feed the fat, cannibalistic and restless larvae during their eternal 12-14 months underground.

Taxonomy
Class:Insecta
Order:Coleoptera
Family:Scarabaeidae
Subfamily:Cetoniinae
Genus:Mecynorhina
Species:Mecynorhina torquata
Formerly known as:Mecynorrhina torquata

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Environment

Terrestrial

Humidity

60 - 80 %

Day temperature

22 - 25 °C

Night temperature

18 - 22 °C

UVB

None

Species description

Geographic Origin and Habitat: This recovery makes no geographic-origin or habitat statement beyond the cited facts above.
Taxonomy and Genetics: GBIF Backbone Taxonomy lists Mecynorhina torquata (Drury, 1782) at species rank. GBIF Backbone Taxonomy places Mecynorhina torquata in the order Coleoptera, family Scarabaeidae and genus Mecynorhina. This recovery makes no genetic statement beyond the cited facts above.
Behaviour and Habits: This recovery makes no behavioural statement beyond the cited facts above.
Morphology and Sexual Dimorphism: This recovery makes no morphological or sex-comparison statement beyond the cited facts above.

Care, breeding and tankmates

Terrarium Setup: Guidance about terrarium setup for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.
Lighting and Heating: Guidance about lighting and heating for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.
Humidity and Hydration: Guidance about humidity and hydration for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.
Feeding and Supplementation: Guidance about feeding and supplementation for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.
Compatibility and Coexistence: Guidance about compatibility and coexistence for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.
Health and Common Diseases: Guidance about health and common diseases for Mecynorhina torquata must rely exclusively on the parameters and sources listed on this record.

Geographic Origin and Distribution

This species originates from: Africa (Foreste pluviali incontaminate, altipiani verdi e suolo frondoso in Camerun, Congo, Uganda).

Origin

Africa and MadagascarEast Asia

Terrestrial invertebrate profile

Diet
Frugivore
The diet of Mecynorhina torquata requires careful consideration to ensure optimal health. In captivity, a varied and appropriately sized selection of food items is necessary to mimic their natural intake. Keepers must provide a balanced feeding schedule and consider nutritional supplements. Proper hydration alongside the diet is also crucial for their digestion. Understanding these dietary needs is fundamental to successful husbandry.
Adult size
8.5 cm
The catalog's scalar value is 8.5 cm. The The Book of Beetles — Mecynorhina torquata source reports a maximum adult measurement of 8.5 cm for this species, recorded as total length (TL). The taxonomic record consulted is Mecynorhina torquata. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
Arboreal
The lifestyle of Mecynorhina torquata is perfectly suited to its natural habitat, dictating its physical and spatial needs. Whether they are climbers, burrowers, or ground-dwellers, their enclosure must reflect these requirements. Providing ample space and correct structural elements is necessary to accommodate their daily routines. A proper setup not only ensures physical health but also encourages natural exploration. Simulating their native lifestyle is the cornerstone of excellent husbandry.
Activity cycle
Diurnal
The activity pattern of Mecynorhina torquata is closely linked to natural diurnal or nocturnal cycles. They exhibit peak periods of movement and foraging that align with their instinctual rhythms. Maintaining a consistent day-night light cycle in their enclosure is essential for their health. Disruptions to this routine can cause lethargy and affect their feeding response. A well-regulated environment ensures they remain active and healthy.
Sociality
Solitary
While adult females generally coexist peacefully, adult males exhibit strong territorial behaviors, frequently engaging in aggressive pushing and grappling contests over prime food sources and females. It is highly recommended to house males separately in captivity, as constant fighting causes severe stress and can quickly lead to damaged legs and premature death.
Reproduction
The reproductive processes of Mecynorhina torquata are fascinating and require specific environmental cues. Successful breeding often depends on precise temperature, humidity, and lighting adjustments. Mating behaviors can be complex, requiring careful observation to ensure the safety of the animals. Once successful, proper care for the resulting eggs or offspring is paramount. Dedicated breeders can achieve rewarding results by mimicking their natural habitat.
Venom level
Harmless
This massive beetle is entirely non-venomous and physically harmless beyond mechanical scratches. They completely lack any form of venom glands, stingers, or toxic defensive secretions. The male's intimidating cephalic horns are utilized strictly as mechanical tools for wrestling rival males, never as weapons intended to pierce or inject toxins.
Handling tolerance
Tolerant
Handling Mecynorhina torquata should be approached with caution, respect, and proper technique. Unnecessary manipulation can induce stress, so it is best kept to a minimum or during essential health checks. When handling is required, slow and supportive movements are crucial to prevent injury. Ensuring a safe, calm environment during these brief periods protects both the animal and the handler. Always observe the animal's body language to gauge its comfort level.
Brumation
Not required
The brumation or resting period for Mecynorhina torquata is an important biological phase tied to seasonal changes. During this time, they may exhibit a significant decrease in activity and appetite. Keepers should carefully research the specific environmental triggers needed to safely induce and end this phase. Monitoring weight and overall condition before and during brumation is vital. This resting period often plays a key role in their long-term health and reproductive success.
Molting
Regular
The shedding or molting phase is a delicate time for Mecynorhina torquata that requires specific environmental conditions. Maintaining adequate humidity is essential to help them shed their old skin completely and without complications. Retained skin can lead to serious health issues if not addressed promptly by the keeper. Observing pre-molt signs, such as dull coloration or behavioral shifts, allows for timely adjustments. A successful molt is a strong indicator of good husbandry and animal health.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Last updated: 08/10/2026
Giant African Fruit Beetle (Mecynorrhina torquata) (Mecynorhina torquata) Care Guide & Terrarium Setup | Atlarium