Tunnel spider – insect species living in the fields, cellars, caves. Spiders weave webs unusual, resembling a ball. Custom shape allows the insect to catch victims, without any effort. On the planet there are about seven hundred subspecies of tunnel spiders.
Spider small size. calf form resembles a drop of water. Color dark gray with brown tints. Sometimes the rear part of the body may have a strip. At present long spider legs, covered with short, stiff hairs. At the head of two pairs of little eyes are placed.
Almost all his spare time to spend their own spiders web, waiting for prey. The threads are not sticky, conversely network soft air. The bait for insects to become stretched network in the form of a web. Some insects, feeling the danger,
stop to rest. At this time the nimble spider pounces on prey, eating it in a trice.
Interestingly, the spider can not wait for the victim. Spider web woven in such a way that when something enters the network, the tunnel feels spider, where the filaments are moving. Sometimes he does not eat the prey whole. Killing your own bug bites, insect drags the body in a secluded place.
Lifespan tunnel spider becomes just six months. Within a short period of time, young couples are ready to give birth to offspring. In August, the adult spiders are ready to mate. The female weaves a special bag, which later lay eggs. Often bag expectant mother hides in a secluded place, protecting the eggs layers of strong, soft web. Sometimes females are the future offspring with them. Unfortunately, the females are killed before the beginning of autumn. So kids grow their own.
Tunnel spiders – beneficial insects. Especially they were needed in the nineteenth century, when the soft cobwebs people stopped bleeding heavily. Now the use of unusual insect is invisible.