It has been almost a decade since brown widow spiders have been prevailing in Southern California, but it has been concerned that since the past few years their population has suddenly increased to a much higher level.

Initially the spider was dotted in Torrance, but with years passed, the spider has moved as far as in the eastern region including Moreno Valley. However, a major question that arises is how much more will their population grow?

Vetter, a research associate at the University of California-Riverside said, “"Are they going to go further north? Are they going to get into Santa Barbara? Are they going to get into the Central Valley? These are things I'm interested in looking at”.

Vetter suggested that this species of spiders are completely opposite to that of other ones, black widows, who prefer staying in dark areas, like to hide in them and stay in holes or areas less used, whereas, brown widows seem to be more active and outdoor class, who prefer occupying flat surfaces or woody areas or even plant pots.

However, a major concern is that this species like to occupy or stay on flat surfaces, including kids’ playground equipments, like slides. However, its bite doesn’t cause any serious effects, which is not same in case of black widow bite.