Spiders

Brown recluse spiders – secluded and deadly

Toxic levels of venom – Brown recluse spiders can cause serious damage to the skin through the loss and death of tissues. Their bites can also result in lesions, nausea, and fever.
Habitat – In the USA, the brown recluse is found in the central southern part, from Texas to the westernmost part of Florida.
Identification – An adult spider has a body length of 1/4 to 3/4 inch (0.6 to 1.9 cm). The most telltale characteristic of brown recluse spiders is the presence of a dark, violin-shaped mark on the dorsum of the arachnid’s light brown or yellowish-brown cephalothorax. The neck of this distinct violin pattern is directed toward the abdomen. Unlike most spiders with 8 eyes, this species has six eyeballs arranged in pairs, one pair in front and one pair in each side.

Black widow spiders – extremely poisonous and deadly

Toxic levels of venom – Black widow spiders’ bites can cause pain, even death, especially for the elderly and children. However, an effective antituberculous drug was developed in 1956.
Only a small amount of venom can cause severe illness for people who are bitten as their venom is comprised of neurotoxins that affect the nervous system. Systemic intoxication often leads to headaches, nausea, vomiting, abdominal pain, fever, and high blood pressure.
The painful condition around the bite area can be very serious if not treated. First aid and medical attention should be provided as soon as possible in the event of a black widow spider bite. If you have any heart problems, you should be hospitalized for follow-up.
Identification – Most black widow spiders’ bodies are 3 to 10 mm in size. Females are larger than males and can measure 13 mm in body length. Black widows are identified by red hourglass marking on the underside of their abdomens. This marking is bright red and signals danger to predators and attackers.
Habitat – Black widow spiders favor dark, secluded areas such as crevices and woodpiles. Inside the home, black widows typically hide in sheltered, dimly lit locations such as garages, dark corners, basements, closets, and cluttered areas.

Wolf spiders – toxic but not aggressive

The toxicity of venom – the bite of the wolf spiders is toxic but not lethal. Although they are not aggressive, they will bite if provoked, thus wolf spiders can be dangerous to humans. A wolf spider bite typically feels like a bee sting with typical reactions including initial pain, redness, and itchiness that subside over a short time period. First-aid and medical attention should be provided as soon as possible, especially for children or elderly victims.
Identification – adult spiders have a body length of up to 1.5 inches (about 3.8 cm). Their bodies are commonly patterned in black, gray and brown hues.
Habitat– This spider dwell in the ground and shelter in the cave. They are active at night for mobile hunting and can move very fast when disturbed. At the onset of the fall season, wolf spiders seek warmer habitats and have been known to enter homes, where they are found in windows, doors, garages, basements, and houseplants.

 

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