But before you enter "panic mode" and drum up visceral scenarios of the U.S.'s most venomous spider, aka brown recluse spider ...

What do you see in this photo? A bumble bee. A small brown spider. White flowers. Look closely: There's a large crab spider ...

From the innocent daddy longlegs to the harmful brown recluse, here are the most common house spiders, how to identify them, and when to worry about a bite, according to entomologists.

Purdue's guide says a mature brown recluse spider's leg span is about the size of a half dollar. ... Reactions include: extreme pain, a small white blister at the wound site, inflammation and a sore.

Generally, brown recluse spider bites are asymptomatic. The brown recluse (Loxosceles) is one of 100,000 species of spiders worldwide and considered to be one of the most medically significant ...