Virginia is home to a diverse selection of spiders. Of the13 major Virginia spiders, three red or partially red: The crab spider, the arrow-shaped Micrathena and the widow. Of the widows, are three red or partially red: the red widow, the southern and the northern widow widow.
The crab spider is usually white with red stripes on the sides of the abdomen, it can also change the color to yellow. It is a hunting spider, and has a short belly and legs to stretch to both sides. Helps shape it, forward, backward and sideways move like a crab. The male crab spider is 1/8 inch long, while the female crab spider is 1/4 inch to 3/8 inch long.
The arrow-shaped Micrathena has a colorful green belly, and the rest of the body can be dyed red to brown. The abdomen is increased and pairs of sharp spines. Two enlarged spines toward the back of the abdomen give the spider its sweep. The male spider is 1/4 inch long, while the female can be up to 3/8 inch. The arrow-shaped Micrathena belongs to the group of spiders known as orb weavers.
Northern and Southern Widow
The northern and southern widows look like the classic black widow. They both have shiny black bodies. The southern women have separated a red hourglass marking on the underside, and sometimes the hourglass into two triangles. The northern females often do not have the shape of an hourglass mark, and instead, red bars on both the top and bottom of her body. The male widows — both northern and southern — are often completely black and without the red marks of the females.
Red Widow Spider
The red widow is the only spider in Virginia, which is all red. This spider is very poisonous. While a bite from this spider is particularly harmful to humans because of its unusually large venom glands, the bites rarely kill people. It is usually 1 inch long. The red widow is a threatened species in the United States.