The brown recluses in Maryland/Deleware don't look exactly like that. They have big fat bodies the size of quarters & half dollars & shorter legs, but they're just as destructive. My father got bit by one & only went to the doctor after 2 weeks of me & my mom pleading with him. His arm turned purple & black & ulcerated, like in the pictures. The doctor couldn't be 100% sure, but he was pretty positive that my dad got bit by a brown recluse. He had to undergo serious treatment for about a year. The "flesh-eating" virus that the brown recluse carried actually deteriorated the bone in my dad's arm & they considered amputating it, but luckily the treatment worked & he was able to keep his arm.
Ironically, my father just got bit again by a spider two days ago. Really creepy!