Key to Bath Whites

The Bath Whites are relatively straight forward to separate with a few key indicators. Two of the three have restricted distributions which should be considered.

Note: The Bath and Eastern Bath Whites are physically impossible to tell apart so are grouped together here.

1a) Bath and Eastern Bath White, Pontia daplidice and P. edusa
      - Much of Europe, being a migrant in S UK (v. rare), N Germany and S Scandinavia.
      - Uns hindwing submarginal marks widen away from the margin and terminate abruptly -
        recalls the end of a bone.
      - Unh white basal steak short and perpendicular to the costa.

1b) Peak White, Pontia callidice
      - Only at high altitudes in the Alps and the Pyrenees. Can be common.
      - Uns hindwing submarginal marks broadest in the middle and terminate in a taper -
        recalls a candle flame.
      - Unh white basal steak is long and sweeps to a very acute angle to the costa.

1c) Small Bath White, Pontia chloridice
      - Extremely local and rare in NE Greece and S Bulgaria.
      - Uns hindwing submarginal marks broadest at the margin, narrowing slightly (parallel to
        the veins) before terminating squarely - wedge shaped
      - Unh white basal steak at an acute angle to the costa.

Bath White/ Eastern Bath White Pontia daplidice/ edusa	Peak White Pontia callidice	Small Bath White Pontia chloridice

Submarginal marks broaden away from the margin	Submarginal marks taper to a point	Submarginal marks narrow away from the margin

White basal mark perpendicular to costa	White basal mark long, sweeping and at acute angle to costa	White basal mark at acute angle to costa

1a) Bath/ Eastern Bath White,
P. daplidice/ edusa.

1c) Peak White,
P. callidice

2b) Small Bath White,
P. chloridice

Identification Bath Whites Pontia

Identification
Bath Whites
Pontia