Today's stitch was found at Arts and Design. It is called Astypalea Stitch, which is the name of one of the islands in the Greek archipelago. The island is famous for being shaped like a butterfly. The stitch is not, however.
Another thing the island is famous for is its sumptuous bridal folk costume, with plenty of embroidery. I have not been able to see any details of the stitching, but guess the Astypalea Stitch is included.
The stitch is also called Whipped Chevron - I would rather call the stitch interlaced than whipped, and the base is not a Chevron Stitch, although the result looks like one!
Work it like this:
Make two rows of staggered V shaped stitches like these:
Change to another (here yellow) thread.
Come out at the left side of the first V stitch.
Take the needle from down to up left, under the (green) thread without biting the fabric.
Make sure the yellow thread is under the needle,
The same here, but don't place your needle on the yellow thread.
Now you go down left under the green thread. Make sure the yellow thread is under the needle.
Down left under the green thread.
From here on you repeat from Number 2.
Up left under the green thread, check that the yellow thread is under the needle.
