submarginal

Except that the yellowish submarginal line is sometimes obscured, the species is very constant in the British Isles.

The W-like angles of the white submarginal line run through to the fringes.

A series of yellow dots on the submarginal line is almost always present, but may be absent.

In some specimens the markings are very faint, and, excepting the whitish submarginal line, are hardly visible.

The submarginal and subapical spots are silvered, especially the latter.