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It appears they have gone. I may have found a place in a floor joist
with some damage. I will just have to see what the pest control guy
says. They have a better trained ear for tapping wood to see if there
are hollow places. I'm confident they can get rid of any that may be
in the house. I'm just worried about any damage that may have been
done and how it could affect a house sale.

thanks again for responding

You can often tell by looking at exposed wood that there are termite
tunnels...it sometimes has a little bit of wrinkled appearance on the
surface. Termites build mud tubes to avoid sun exposure, but where they
connect to wood would be the place to start poking around.

The extension service for your area might know which termite species are
predominating and what treatment is most effective for those.

Wallboard and baseboards also often have a wrinkled appearance because
termites burrow close to the surface...just tap around on baseboard near
where the tubes communicate.

The professional inspections I've seen aren't as thorough as my own, but
need to know what to look for. We just had inspection of our condo and
the guy didn't even look at the areas where old damage is still evident )

The "funky stuff" you referred to sounds like termite poop...there
should be pin-holes near that where they push the stuff out of their
tunnels. Their poop looks granular, brown, red to dark blackish.