There are a couple regionals in the NY State schools, Ago,
Arethusa, and
Clionian.
The Clionian chapters joined ASA sometime in the late 40's - early 50's. When SUNY made all the sororities drop national affiliation, they went back to Clionian, except for
Alpha Sigma Chi who stayed on their own.
How do I know so much about this you ask? Because I was moved to investigate after years of looking at our closed chapter list and wondering WTF a "Gamma Clio" chapter was.