(Black widow spider (Latrodectus
It is a very poisonous type of spider in the genus zoa, the venom is rarely killed healthy humans, it is well known for its distinctive black and red color, females of species that sometimes eat males after mating, the native of these species is to North America
Female mature black widow spider up about 1.5 inches (38 mm) in length, 0.25 inches (6.4 mm) in diameter, which is shiny black, with red marking in the hourglass on the abdomen, there is a lot of variation in female size, Especially in female carriers of eggs, the female-bearing belly of eggs can be more than 1.25 cm in diameter, males less than 0.75 cm in length
The young black widow spider has a completely different appearance from the adult belly in gray to black with white lines across it, spotted with yellow and orange
The black widow spider is found primarily in the southeastern United States, which ranges north to Ohio and the far west of Texas, and the northern black widow was found primarily in the Northeast United States and southeast Canada, although its group interferes in Canada , Ranging in the southern parts of British Columbia, Alberta, Saskatchewan, Manitoba and Ontario, and in the Dominican Republic it is found throughout the country
Black widow spider mating occurs between late spring and early autumn, females can produce 4-9 egg vesicles in the summer, each containing about 100-400 eggs, eggs are usually incubated from twenty to thirty days, and it is rare for more than one hundred to stay on After the survival of this process, on average only thirty survive through the first introduction of feathers, due to the black widow spider of meat eaters, due to lack of food, or lack of adequate shelter
The young black spider spider takes two to four months to mature enough to breed, but full maturity usually takes six to nine months. Females can live for up to three years, while males are much shorter. After mating
The black widow spiders usually prey on a variety of insects, but sometimes feed on other spiders. Spider spiders are strong enough to catch large animals such as rats. When the prey is tangled on strings, wrap around the prey safely, then bite the prey. Ten minutes to become effective, meanwhile hold the prey tightly by the spider
The black widow spider builds close-to-earth networks in dark protected areas, both outdoors under piles of wood and stones, in hollow trunks of trees, and in enclosed areas such as enclosed buildings, basements and sheds
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