Spiders Tarantulas of the highway

To who at some time when going driving or in a vehicle, has not he/she been crossed an enormous spider by the highway? They are male that they walk in search of hidden females in their caves, generally last and cloudy days. But it is not necessary to worry, they are not not only dangerous, but rather until they shake hands us controlling a plague.

The cores should move because their females are sedentary and they live in caves in the prairies. Although they are night species, the cores also take advantage the cloudy days or with drizzle for their day forays.

It is an enigma that intrigues to the aracnólogos for a lot of time, the fact that the cores come out massively. What we can say is that the cores live a lot less than the females, persisting as adults so single two months. As many they already exist more female than male (possibly 10 at 1), these should copulate to different females and they have little time. Also the synchronous exits of numerous cores would saturate the capacity of capture of their scarce predators. Does this explain the massive exits but, why in day schedule and in stormy days? Probably these dark bugs and nocturne suffer an important dehydration if they leave in sunny days. Also, it is possible that the females are waived to lean out to the entry of the cave during the sunny days. That the female appears and indispensable so that the sexual intercourse that he/she needs a lot of space happens. He/she also has to do with the communication among female and male that is by means of vibrations of the floor during the retinue. It is well-known that the dampness of the substrate facilitates the propagation of the signals. Therefore, the cores would take advantage of the climatic conditions to court more intensely for the heat and their communication would be more efficient and more successful to achieve the sexual intercourses.

These spiders are also very useful for us, since they can be a natural very effective insecticide. The spiders are indebted predadoras during all their life. In general they eat insects, detrimental many of them for the man. In the case of the spiders of the highway, they are able to eat up to the adults of the bugs "bull" for example, this cascarudo, is responsible for generating important damages since in the natural prairies its larva, he/she feeds of roots of pastures. This insect is characterized to be difficult to attack, since he lives in a permanent way under the earth and any other spice, except for these spiders, they eat them. This insect class, is bad for the cultivations with direct siembra, where the floor stays intact, then it damages seeds, roots and until wheat shafts, for example, affecting to the agriculture.