This year, I, too, have noticed what appear to be roaches on/in
the hives.  I live in a semi-rural area and have never seen them
before.  I have also seen them in the garden and on some grape
vines.  They fly if given the opportunity.  I wasn't certain that they
were roaches, but they sure do look like the same critters I used
to see in Boston.
 
On my hives, they are fewer in numbers only 5 or so per hive, and
I've been killing them when I see them.  I've seen them primarily on
the outside of the hive and inside the outer cover.  They seem a bit
bolder (less skitish) than the urban dweller.
 
I'm concerned, though.