Found this spider under our old lawnmower. Its body as about 1 inch long, and from leg to leg its about 2 inches. Biggest spider i've ever seen around here (central New Jersey). Any idea what it is or any info about it?
Of the five species of Rabidosa in the US, two have a solid dark median stripe on the top of the abdomen, Rabidosa punctulata and R. carrana. Your specimen from NJ is most likely R. punctulata, but you can make sure by the coloring on the underside of the abdomen:
R. punctulata: the underside is "brownish yellow with irregular pattern of large black spots:" *