One identification method used by scientists consists in checking how many pairs of eyes the species has; the brown recluse spider has only three pairs of eyes, unlike most other spiders that have four. Two eyes are located in a median position while the other four are placed on the sides of the body. Huntsman Spider A common inhabitant of wooded areas, huntsman spider is spread in various globe areas with a climate ranging from tropical to semi-tropical; thus, you can find this species in Australia and New Zealand as well as in the United States or in Asia. Since the favorite habitat of the huntsman spider is the forest, in many parts of the world it is known as the wood spider. A brown recluse spider bite gets painful and itchy within two up to eight hours from the incident. The next thirty six hours are crucial for the evolution of the condition, since it is now that a deterioration or an improvement may occur; generally speaking, the ulcer and the necrosis will only appear within a few days if the health status does not improve. Lots of doctors recommend a minor surgical intervention in the tissue area affected by the venom, yet the excision could impair the recovery as such and may increase the risk of scarring. The curious fact is that lots of brown recluse spider bites have been reported in parts of America where this species does not live. Fortunately, the latter are far more numerous than the former, as poisonous spiders are spread only in certain globe areas, and sometimes they have warning features that sets them apart. In North America for instance, poisonous spider identification is a thumb rule for anyone living close to such creatures; there are not too many species of the kind, hence, once you learn how to set them apart you can relax and feel a lot safer. Though, there are some morphological differences, the three varieties are pretty much related and similar to each other. Like many other venomous creatures, the black widow spider has bright red pattens on it as a warning sign for predators that would attempt to feed on it. The black widow spider is not capable of killing a bird that would eat it, but the digestive sickness that would follow, will be definitely enough to make it avoid attacking the black widow again.