, Disclaimer: All content is provided for entertainment purposes only. It is known to be quite aggressive and is considered potentially dangerous. So, absolutely all spiders potentially are able to bite. The western pygmy can be found throughout North America and as far west as Hawaii and the middle east. The two contenders are the Patu digua from Colombia, with a body length of 0.014 inches, and the Samoan moss spider, which can be as tiny as 0.011 inches.