The Dainty Sulphur Butterfly in Ohio
Parshall, David K.; Watts, John (2002-04)
In 1999 the pierid butterfly, the dainty sulphur, Nat halts iole appeared in Ohio in good numbers for the first time in 68 years. Ohio is at the extreme northern limit of its range (Scott 1986; Opler and Malikul 1998). ...