Colour - Upperside

Determining colours

The colours described in this key are those present on preserved specimens, although it is known that some species show different colours when alive (compare Figs 1 and 2).

The significance of colour is in the tonal pattern of light and dark areas, rather than the actual hues involved. Thus 'light' may be white, yellow, orange, brown, red or green and 'dark' may be black, purple and dark hues of red, brown and green.

Some species show considerable variation in colour and pattern, which is noted in the descriptions but not always illustrated.


Fig. 1 Living Diaphonia dorsalis

Fig. 2 Preserved Diaphonia dorsalis