Among other species, trapdoor spiders have a pretty long life span from five to twenty years, and only the females make a nest, whereas males go out in the open hunting and looking for a mate. The bites of these spiders are not dangerous, though sometimes nasty symptoms may appear: itching, swelling and even pain are among the most frequently encountered. Brown Recluse Spider Belonging to a small-sized arachnid species, the brown recluse spider is the one to be found in shady corners both indoors and outdoors. Unlike most other spiders that grow in our homes, the brown recluse spider does not weave a web, but creates an apparently disordered thread shelter. Hobo spiders definitely do not deserve the label of aggressiveness, and presently, there are trends of opinion among scientists related to the real danger of this species for humans: there are some who actually claim that hobo spiders are no threat to humans. The only time when hobo spiders are really dangerous is when they are laying their eggs, particularly if they see you as a threat to their future siblings. Thus, you may find brown widow spider specimens in a variety of colors from light tan to dark brown; moreover, all sorts of markings decorate their bodies making them all the more unique. There are red, orange, yellow, black and white patterns that the brown widow spider may carry on the abdomen, all of these features misleading any untrained eye. Unlike other regular spider species, the camel spider is both carnivorous and omnivorous: it basically feeds on other arthropods, but it is not uncommon for the camel spider to devour larger prey such as lizards. Lots of videos with the camel spider cutting its prey into pieces and then consuming it, have been uploaded on the Internet. Once the venom has got into the system, there is a whole range of symptoms that accompany the brown recluse spider bite: vomiting, nausea, fever and muscular or joint pain have been among the most frequently reported. Though apparently harmless, the brown recluse spider bite is more serious than that of other more venomous and threatening species.