Male, Switzerland, May 2006
Male, Switzerland, May 2006
Male, Switzerland, May 2006
Male, June 2005, Switzerland
Female, June 2005, Switzerland
Male underside, Switzerland, 1998
Male, Switzerland, 1998
Male, Switzerland, 1998
Female, Switzerland 2002
Female, Switzerland 2002
Chapman's blue is extremely similar to the common blue. From the upperside the best things to look for in the male are the slightly more violet colour to the wings and the rather furry appearance of the androconial patch in the cell of the forewing, which common blues lack. The female is very variable. The underside is more distinctive : the cell lacks a spot in the middle (having just the terminal cell spot). Common blues nearly always have this extra spot in the middle, though it is occasionally absent.