Pyrgus centaureae wyandot.

[Michael Gochfeld]

It looks like an interesting (if fortuitous) thread. Leroy's Koehn's 
report of the apparent commonness (or at least the 'not-so-rareness') of 
Wyandot over a large area as recently as the early 1980's, would 
certainly be an interesting baseline for comparison with more recent 
observers in the same areas (none of which I know personally). 

The very few reports I could find for NJ indicate that here to it was 
not a "domestic" creature, although remote areas here are often not that 
far from residential areas. 

Mike Gochfeld