Green Jumping Spiders

Scientific Name

Mopsus mormon

Appearance

The green jumping spider males and females are quite different in their appearance. The male spider’s body is bright green with a dark red-colored head. The front pair of big eyes occupies half of its dark face. Below the eyes is a pair of large fangs. Their abdomen is colored white and green with two black lines on top. The legs are green to dark red. Around the spider’s head is a hairy white crown that is topped with black hairs. The male’s fully-grown body length is about 5/8 inch long. While all green jumping spiders are colorful, males tend to be more colorful than the females.

The female’s appearance varies, but generally is leaf-green in color. Females have a distinctive white patch around the eyes, and two black lines along the top of the abdomen. The female has a white and brownish-red pattern on her cephalothorax, or the united head and thorax on a spider, and its body length is up to ¾ long.

Behavior, Diet & Habit

Green jumping spiders are daytime hunters. They prefer to forage for prey and build their nests among plants with long sword-shape leaves. Insects and other spiders comprise the majority of their prey. Green jumping spiders live within an unusual web nest that is comprised of three compartments: males in one chamber, females in another and egg sacs occupying the middle compartment. Sometimes, however, a green jumping spider’s nest will not contain a male spider.

Like many other species in the jumping spider group, the spider will move about using a strand of silk that functions as a safety line attached to the end tip of the spider. When a jumping spider moves or jumps and misses its prey, the spider can always climb back to its original position and resume stalking their prey.

Signs Of An Infestation

Green jumping spiders rarely become a problem unless they are able to get inside a home through openings around doors and the foundation.

Distribution

Mopsus mormon is predominately found in Australia and is one of the country’s larger jumping spiders. Its distribution is considered to be the territories/states of Queensland, New Guinea, New South Wales, the Northern Territory and Western Australia.

More Information

Do they bite?
Green jumping spiders are not known to be serious problems for humans, but their bite is painful and may cause an ulcerated sore. There is no evidence that green jumping spider bites have ever caused death.

Prevention Tips
Prevention of spiders begins with making sure their food sources are kept to a minimum; plants that provide harborage are kept away from the house; and that holes, cracks and gaps in the home’s doors, windows and foundation are properly sealed to help prevent entrance into the home’s living space. Should the homeowner need assistance to help control these or any other spiders, contact your pest management professional and request an inspection. Your pest management professional can then use his or her inspection findings to prepare a comprehensive pest management plan that will effectively and efficiently deal with the specific pest problem.