
Male Madagascar hissing cockroaches hiss to communicate with other cockroaches to:
- Attract mates
- Scare off enemies
- Warn others
How much does a madagascar hissing cockroach weigh?
care of the Madagascar hissing cockroach. Description and Biology The Madagascar hissing cockroach (MHC) is approximately 2 to 4 inches long and weighs 1/4 to 7/8 ounces. The roach is heavily sclerotized, giving it a brownish or black color over the entire body. Immediately after the molting process, the
Is a madagascar hissing cockroach a detritivore?
Madagascar hissing cockroaches are primarily described as detritivore, which suggests that these insects feed on dead leaves and plant materials present on the forest floor, which might also include fallen fruit.
How many legs does a madagascar hissing cockroach have?
The Madagascar hissing cockroach has six legs like other cockroaches. Though their colour is slightly different from others – a shiny brown cockroach. What differentiates them is their ability to hiss.
Do Madagascar hissing cockroach live ingroups?
Hissing roaches are often found in groups consisting of related individuals, as the females retain their eggs internally before birthing their young live. There are 20 species of hissing roach in the genus Gromphadorhina and all but one live on Madagascar. That one species is endemic to Europa Island, which just off the Madagascan mainland.

Do Madagascar hissing cockroaches actually hiss?
Amazingly, they actually have a number of distinct hisses they use to communicate different things to each other. Both male, female, and juvenile cockroaches will hiss defensively and in alarm, but there are two other hisses that only males use: the male-to-female courtship hiss, and the male-to-male dominance hiss.
What is the purpose of hissing cockroaches?
Hissing cockroaches live in large colonies. They hiss when threatened by a predator, to sound an alarm for other roaches in their colony or during male cockroach fights. Small holes called spiracles on their backs are used for breathing.
How does the Madagascar hissing cockroach hiss?
While many insects use sound, the Madagascar hissing cockroach has a unique way of producing its hisses. In this insect, sound is produced by forcibly expelling air through a pair of modified abdominal spiracles. Spiracles are breathing pores which are part of the respiratory system of insects.
Where do cockroaches hiss from?
Hissing cockroaches have specially-modified spiracles. If they expel air from them quickly, it produces the hissing noise. It would be like if you took a soda straw and blew through it really quickly. We'd get a whooshing of air and hear a little bit of a hissing noise.
Are hissing cockroaches friendly?
The easygoing nature of the Madagascar hissing cockroach makes it a good starter pet for owners who are new to insect keeping. Despite its fearsome name, the Madagascar hissing cockroaches are described by their human fans as hardy, docile, and easy to handle.
Do cockroaches scream?
Certainly, seeing a cockroach can elicit high-pitched screams from an unsuspecting homeowner late at night. However, the most common species, the American and German roaches, are generally acknowledged to be silent.
What is the biggest roach?
Megaloblatta longipennisMegaloblatta is a genus of cockroaches in the family Ectobiidae. It includes the largest living species of cockroach, Megaloblatta longipennis, which can grow to 9.7 centimetres (3.8 in) in length and have a wingspan of up to 20 centimetres (7.9 in).
Do roaches fight each other?
Male cockroaches compete with one another for access to breeding females, but even the most aggressive cockroaches don't fight all comers. Like other animals, roaches do their best to avoid unwinnable conflicts by sizing up the size and power of would-be opponents. Sometimes, that's easier said than done.
Are hissing cockroaches poisonous?
How serious are Madagascar hissing cockroaches? These insects pose no known danger to humans.
Do hissing cockroaches smell?
Each Madagascar hissing cockroach has its own characteristic sound, and the cockroaches can distinguish between each other's hisses. There is no odor associated with these cockroaches or their feces.
Does a cockroach bite?
Cockroaches rarely bite humans unless they see food. They only tend to bite when they feel threatened or when they see food residue on your body. They are disease carriers and that's why having contact with them is not good. They don't often bite, but when they do, it can be uncomfortable.
How long do Madagascar hissing roaches live for?
5 yearsIn good conditions, a hissing cockroach may live up to 5 years. If males and females are kept together, they will breed. Since females carry their ootheca internally, it may not be immediately apparent if a female is 'pregnant,' so a clutch of nymphs may suddenly appear.
Are hissing cockroaches poisonous?
How serious are Madagascar hissing cockroaches? These insects pose no known danger to humans.
Do hissing cockroaches smell?
Each Madagascar hissing cockroach has its own characteristic sound, and the cockroaches can distinguish between each other's hisses. There is no odor associated with these cockroaches or their feces.
What animals eat hissing cockroaches?
What Eats the Madagascar Hissing Cockroach? Hissing cockroaches are one of the largest species of roach; they make a great meal for creatures that snack on insects. These include reptiles like lizards and snakes, amphibians like frogs and toads, small mammals like hedgehogs and shrews, and birds.
Why do cockroaches exist?
If you're battling an infestation, you may wonder why cockroaches even exist. They appear to serve no real purpose. Cockroaches recycle decay and waste while promoting the nitrogen cycle. They're a food source for predators and assist the ecosystem in inhospitable places.
What does it mean when a cockroach hisses?
If the colony is disturbed, hissing serves as a warning. They signal to the rest of the colony of danger. This gives the members of the colony time to hide from whatever may be disturbing their nests.
What Do Hissing Cockroaches Sound Like?
The hiss of this cockroach sounds akin to that of an angry cat. It is a distinct sound that’s not easily confused. It’s also rather loud. You will definitely be able to hear it if you are close to one.
What does a Madagascar cockroach sound like?
You can even replicate this sound yourself at home. If you take a straw and quickly blow through it, you will hear a slight hissing noise. The Madagascar cockroach’s hiss is more pronounced.
What do spiracles do for cockroaches?
By opening and closing, they let in air. Like a set of lungs, the spiracles allow roaches to breathe in oxygen and expel carbon dioxide. Spiracles are a common physical trait of insects of every kind. All cockroaches possess them, be they wild species or household pests. However, Madagascar Hissing Cockroach’s spiracles are different.
How does a cockroach scare off predators?
If a predator approaches the cockroach’s territory, the hiss elicited by a male cockroach will frighten it. This may be enough to drive the predator to leave the area, thus leaving the colony unharmed.
What is the sound of a cockroach?
The Madagascar hissing cockroach can produce an angry, cat-like hiss that can startle anyone who hears it. Since it’s the only roach species that produces this sound, you may wonder how it happens.
What is the noise of Madagascar cockroaches?
Madagascar hissing cockroaches create their signature noise through their spiracles. These serve as a cockroach’s unique replacement for lungs. They are slots peppered up and down the body. The spiracle valves extend from the roach’s respiratory tract. They then open at the surface of the body.
What is a Madagascar hissing cockroach?
Madagascar hissing cockroaches are one of many fascinating animal species to hail from the island of Madagascar.
How do Madagascar hissing cockroaches make noise?
Madagascar hissing cockroaches, however, exhale air through their breathing holes. This audible use of the respiratory system is far more common in vertebrates.
How many nymphs do Madagascar cockroaches have?
Females create a cocoon-like egg case called an ootheca and carry their eggs (and neonatal nymphs) inside their bodies. They then bear living young—as many as 60 nymph roaches.
What is a hissing cockroach?
This insect looks—and sounds—like anything but a run-of-the-mill roach. Madagascar hissing cockroaches are one of many fascinating animal species to hail from the island of Madaga scar.
Why do males use their horns?
Males use their horns in aggressive encounters reminiscent of battles between horned or antlered mammals. Rivals ram one another with their horns (or abdomens) and during the fight often unleash the amazing hisses that give the animal its name.
Do Madagascar cockroaches fertilize females?
New research shows that male Madagascar hissing cockroaches with smaller horns—which they use in battle over females—compensate with larger testicles that may help them fertilize females.
What does it mean when a cockroach hisses?
Hissing cockroach behavior and facts 1 Hissing cockroaches live in large colonies. 2 They hiss when threatened by a predator, to sound an alarm for other roaches in their colony or during male cockroach fights. Small holes called spiracles on their backs are used for breathing. If they force air out of the spiracle quickly, it makes the hissing sound. This audible use of the respiratory system is more common in vertebrates (as when humans emit a heavy, noisy sigh). Most insects that make noise do so by rubbing body parts together or by vibrating membranes. 3 They're most active at night. 4 Males sport large horns, which they use in aggressive encounters like the battles between horned or antlered mammals. Rivals ram each other with their horns or abdomens and hiss as they fight. Winners hiss more than losers, so the sounds may help determine a roach hierarchy. 5 They're an important link in the food chain, breaking down forest debris and providing food for larger animals.
Where do hissing cockroaches live?
Madagascar hissing cockroach. Gromphadorrhina portentosa. Madagascar hissing cockroaches live in forests on the island of Madagascar. They are herbivores. They live in hollow logs and scavenge amid the leaf litter and rotting wood of the forest floor for food like fallen fruit.
What do cockroaches eat?
The zoo's hissing cockroaches live in the Insect Zoo. They are fed a diet of fruit.
How do insects make noise?
Most insects that make noise do so by rubbing body parts together or by vibrating membranes. They're most active at night. Males sport large horns, which they use in aggressive encounters like the battles between horned or antlered mammals. Rivals ram each other with their horns or abdomens and hiss as they fight.
What percent of cockroaches are not household pests?
99 percent of all cockroach species are not household pests.
What are the two appendages of a roach?
Cerci are two appendages (body parts that extend from the main body) that the roach uses to sense objects in its environment. The two cerci are at the end of the abdomen.
Where is the hissing cockroach in Madagascar?
The Madagascar Hissing Cockroach: Royalty Among Roaches. Deep in the tropical forests and dense jungles of Madagascar, from a place hidden beneath damp leaf litter and loose tree bark on the forest floor, comes a loud, sharp hiss. Below you, on the ground, the Madagascar hissing cockroach crawls through the evening darkness, ...
How many nymphs can a Madagascar hissing cockroach carry?
Then, they hatch inside the female and, as neonatal nymphs— baby cockroaches —they remain in her thorax for several weeks. A female can carry up to sixty nymphs at once!
Why do cockroaches hiss loudly?
These roaches hiss loudly to enforce the hierarchy of the colony and to ward off intruders. Madagascar hissing cockroaches don’t live in homes or buildings naturally. Since they are wingless cockroaches and aren’t attracted to light, there’s very little chance these cockroaches will enter a human dwelling.
Why do African cockroaches hiss?
A male might claim a specific rock or a fallen log for months at a time, rarely leaving its territory. These roaches hiss loudly to enforce the hierarchy of the colony and to ward off intruders.
What do Madagascar hissing cockroaches eat?
Below you, on the ground, the Madagascar hissing cockroach crawls through the evening darkness, searching for food among the detritus (fresh, fallen fruit or a leafy branch makes a good meal for these insects).
What are the horns on a Madagascar cockroach?
Horns of a male Madagascar hissing cockroach. The Madagascar hissing roach has a unique pair of large, horn-like bumps that protrude from its pronotum (the foremost section of a cockroach’s thorax, which sits directly behind the head).
How big is a hissing cockroach?
The Madagascar hissing cockroach is one of the largest cockroach species in the world, growing to 2–3 inches long as an adult—one could almost cover your palm from thumb to pinky—and weighing nearly 1 ounce.
What do Madagascar hissing cockroaches eat?
In the wilds of Madagascar, they mostly eat dead plant matter, from fallen leaves to rotten wood and decaying fruit. Here at the museum, they’re fed a scrumptious mixture of fruits and vegetables, and for a protein-boosting treat, their favorite: dog kibble!
Why do cockroaches make hissing noises?
When threatened, these cockroaches make a loud hissing noise, like that of an angry cat or snake, that makes them sound much bigger and scarier than they actually are . Their strategy hinges on their would-be-predator becoming scared or surprised by this sudden noise—while cats and snakes hiss as a warning of an incoming attack, hissing cockroaches are otherwise defenseless, and have to make a run for it as soon as they get an opening.
What is the name of the cockroach that horns on the head?
Male Madagascar hissing cockroach at the museum, with visible “horns” on the dark-colored pronotum above the head.
Do Madagascar cockroaches fly?
Unlike many species of cockroach, Madagascar hissing cockroaches are wingless. Instead of being able to fly away from predators, they have to rely on running and hiding. But what happens when this isn’t enough to keep them away from danger? That’s where the hissing comes in!
Do cockroaches hiss?
But hissing cockroaches don’t just hiss to defend themselves. Amazingly, they actually have a number of distinct hisses they use to communicate different things to each other. Both male, female, and juvenile cockroaches will hiss defensively and in alarm, but there are two other hisses that only males use: the male-to-female courtship hiss, and the male-to-male dominance hiss.
Why is the Madagascar hissing cockroach so popular?
The Madagascar hissing cockroach is one of the most widely recognized exotic insects because of its large size and dynamic behavior. A staple in science museums and classrooms, it never fails to attract a crowd. If you have ever wanted to know more about this fascinating insect, keep reading.
Why do cockroaches make hissing sounds?
Rather than having a nose with only one pair of nostrils, insects have many pairs of spiracles along their body surface. When the hissing cockroach quickly forces air out of these spiracles, it creates a hissing sound. You can do something very similar. Try forcibly pushing air from your nostrils. Did you hear a sound? Just imagine what that would sound like if you had multiple pairs of nostrils!
How do they hiss?
Insects do not have nostrils (or a nose for that matter!), so how do they breathe? If you look along the edges of the dorsal surface of a hissing cockroach’s abdomen, you will notice a pair of tiny, dark circles on each segment. If you were to look at these darkened areas under a microscope, you would see tiny openings in the insect’s exoskeleton, or hardened body surface. These openings are the spiracles. It is through these openings that air enters and exits the insect’s body.
What are the tiny bugs crawling on my hissing cockroach?
The tiny organisms crawling on your hissing cockroach aren’t bugs at all; they’re tiny mites. These mites will not leave the cockroach’s body. They help to keep it clean by consuming any saliva or organic matter that may build up on its surface. This helps to prevent mold or fungus growth on the cockroach’s body.
How do I tell if my cockroach is a male or a female?
To determine your hissing cockroach’s sex, first look at its prothorax. The prothorax is the dark, rounded region covering the head on the cockroach’s dorsal surface. If there are 2 large lumps, or tubercles, you have a male. If the prothorax is smooth and lacks the hornlike tubercles, you have a female. Note that some males have very pronounced tubercles, while others do not.
Why Do Hissing Cockroaches Hiss?
You may be wondering why do different species of cockroaches make noise. Cockroaches make noise for different reasons. Notable cockroach species make a hiss and the Madagascar cockroaches the most famous species known to make a hissing sound.
How and Why does a Cockroach Hiss?
The hissing is usually a means to send a signal to other members of their colony and alert them of an imminent threat or danger.
Do Hissing Cockroaches Bite Humans?
Among the cockroach species you can think of, hissing cockroaches are friendly and not likely to bite human beings.
How Do You Deal With Hissing Cockroaches?
Not all cockroaches can be tamed, but hissing cockroaches can be a great choice.
How many lenses does a Madagascar hissing cockroach have?
Most roaches have limitless lenses. The Madagascar hissing cockroaches are unique because they have more than 2400 hexagonal lenses per eye. This means that hissing cockroaches have excellent vision and can see many things at a time. They are able to form multiple images of what is happening in their surroundings.
How to tell if a cockroach is pregnant?
Once you own such cockroach species, you will not only wonder why do cockroaches hiss, but also be mesmerized that they get pregnant too. In fact, you will find it so fascinating to tell if your hissing cockroach is pregnant.
How long does it take for a hissing cockroach to get pregnant?
A female hissing cockroach will make with the most dominant males and the gestation period is about 60 days.
