A pale yellowish-white variety of the former specimen. It is very
rare, and is found in May and during the summer months, though very
seldom met with in England.[3] It is slightly smaller than the Colias
Edusa, and has been found so small as to measure only an inch across
the wings. Don Ramon Gomez has one in his collection of this size. The
markings vary considerably, and the bright orange spot in the centre of
the hind-wing, as seen in the illustration, is replaced occasionally
by a pure white one. The male has hitherto not been found.
[3] In the summer of 1892 many were taken.