Red-headed mouse spider facts for kids
Quick facts for kids Red-headed mouse spider |
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| Female | |
Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Mygalomorphae |
| Family: | Actinopodidae |
| Genus: | Missulena |
| Species: |
M. occatoria
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| Binomial name | |
| Missulena occatoria Walckenaer, 1805
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The red-headed mouse spider (Missulena occatoria) is a very special spider from Australia. It belongs to an ancient group known as mygalomorph spiders. These spiders are famous for their strong bodies and colorful looks. People used to think they dug deep burrows like mice. That funny old myth gave these amazing arachnids their common name.
Contents
Appearance of the Red-Headed Mouse Spider
Male and female red-headed mouse spiders look totally different from each other. Scientists call this difference sexual dimorphism.
Bright Males and Camouflaged Females
The male spider is very bright and easy to spot. It measures about 15 millimeters long. Its head and large jaws shine with a bright scarlet red color. However, its rounded abdomen is dark gunmetal blue or black. Males also have long, slender legs for walking.
Females look completely different and grow much larger. An adult female is stout and reaches about 35 millimeters long. Her body is mostly dark brown or glossy black. Sometimes her jaws show a tiny hint of red. Her legs are short, thick, and built for heavy digging.
Where the Red-Headed Mouse Spider Lives
This creature lives across mainland Australia. It is the most widespread kind of mouse spider on the continent.
Habitats Across the Australian Continent
These spiders thrive in open eucalyptus forests and dry inland shrublands. Most live in areas found west of the Great Dividing Range. They love dry soil where they can build secure underground homes.
Flying Through the Air
Most heavy ground spiders move to new places simply by crawling. Red-headed mouse spiders have a very unusual travel secret. Tiny baby spiderlings climb tall plants and let out strands of silk. The breeze catches the silk threads and carries the babies away. This neat airborne trick is called ballooning. Most often, only modern araneomorph spiders travel using the wind. Ballooning lets these young spiders spread far across mainland Australia.
Burrows and Daily Survival Habits
Red-headed mouse spiders spend most of their lives hidden inside underground tunnels.
Underground Trapdoor Homes
A mouse spider digs a deep burrow straight down into the dirt. This safe tunnel can reach up to 55 centimeters deep. It protects the spider from hot daytime temperatures and hungry predators. The entrance features two cleverly hidden trapdoors made of silk and dirt. When an insect walks near, the spider bursts out to grab dinner.
Spider Bites and Human Safety
The venom of this spider is quite strong. Fortunately, these shy spiders rarely interact with humans. Most bites cause only mild symptoms because they often do not inject venom. If someone ever needs medical help, Australian funnel-web spider antivenom works well. Doctors can use this medicine to help patients recover quickly and safely.
How Scientists Study and Classify This Spider
A French scientist named Charles Athanase Walckenaer first described this spider in 1805. Over many decades, naturalists have studied museum specimens to understand its family history.
Sorting Out Scientific Names
Early scientists sometimes mixed up this species with another relative called M. insignis. A researcher named H. Womersley looked closely at them in 1943. Later, an Australian arachnologist named Barbara York Main sorted out the records in 1985. Her careful research helped modern databases like the World Spider Catalog identify every specimen correctly.
