Macrobdella mimicus is the first N. American medicinal leech species discovered in 40 years! #NBD. The orange-spotted, olive-green leech, was found on a field expedition in a Maryland swamp, but the species ranges across the Piedmont region of the eastern U.S. pic.twitter.com/luD0dslKuF

— Smithsonian's NMNH (@NMNH) August 15, 2019