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Madagascan Hissing Cockroach (Gromphadorhina portentosa)

The Madagascan hissing cockroach (Gromphadorhina portentosa) is a large, wingless insect native to the forest floors of Madagascar. Known for its distinctive hissing sound—produced by forcing air through tiny openings called spiracles—this species uses its vocalizations for communication, mating, and defense. Unlike many cockroaches, it plays a vital ecological role as a decomposer, breaking down decaying plant material and recycling nutrients into the soil. Its hardy nature and docile temperament have also made it a popular species in educational programs and as a pet, helping to challenge misconceptions about cockroaches.

Madagascan Hissing Cockroach (Gromphadorhina portentosa)

Rating is 5.0 out of five stars based on 4 reviews
£1.50Price
Quantity
  • Size: Small Nymphs & Adults available

    Status: Captive Bred

    Range: Madagascar

     

  • Temperature 22-30 C
    Humidity 60-70%
    Diet Fruit, Veg, Dog or Cat Biscuit, Leaf Litter
    Enclosure

    Semi-Arboreal

    Large escape proof enclosure (use Vasoline

    around the tops and doors to prevent escape).

    Species can climb glass and plastic. Lots of

    climbing  and hiding spaces. Soil substrate.

     

Reviews

Rated 5 out of 5 stars.
5.0 | 4 reviews
4 reviews
  • Sebastian Campbell-Scott-Howells5 days ago
    Rated 5 out of 5 stars.
    Verified
    Very healthy cockroach

    Despite an issue with the royal mail, the cockroach is very healthy and adapting well to it's new environment. It also likes the dry leaf litter and bran I ordered from here. Overall, an excellent seller, would highly recommend :).

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  • Freya WellburnNov 28, 2025
    Rated 5 out of 5 stars.
    Verified
    Brilliant

    First time buying from Graeme, overall a very positive first experience. Ordered three male Hissers, dispatched quickly and arrived in secure packaging, all happy and healthy. Will definitely be buying from here in the future!

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  • Nigel McKayDec 12, 2025
    Rated 5 out of 5 stars.
    Verified
    Outstanding

    This was my second order from Graeme and I couldn't be happier. I purchased two adult hissing cockroachs and when they arrived I was absolutely blown away how big and healthy they are. Graeme has to be your one stop shop for everything insect related ⭐⭐⭐⭐⭐

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  • Steve Metcalfe Oct 07, 2025
    Rated 5 out of 5 stars.
    Verified
    Hissers

    Small nymphs at a great price. Quality packaging as usual.

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