You can always tell the milkman's pig by the black spot on its back.
If they look in, they'll just take us for a black spot in the dark!
In a minute, in the depression at the center, a black spot formed.
There probably is some black spot in his life which has brought him good luck.
Its fore wings are brownish grey, crossed with zigzag darker lines, and having a black spot near the centre of the costal margin.
Who tipped me the black spot the day we landed, and began this dance?
One black spot remained visible, and on it I centred my energies.
The third day Straightshaft saw a black spot in the distance.
They looked at the earth through the floor-light, but it was little more than visible—a black spot drowned in the solar rays.
He explained how he had timed the passage of the black spot.