In several areas dark moths were more common than expected (Talk.Origins)

Claim CB601.2.2:

In rural East Anglia, where there were lichen-covered trees, and typical light moths seemed better camouflaged than melanics, the latter reached a frequency of 80%. In rural areas of northern Wales the proportion of melanic moths was higher than expected, and in southern Wales, where melanics were better camouflaged, they comprised only 20% of the population. This is inconsistent with Ford and Kettlewell's explanation for the spread of the dark moths in terms of selective visual predation.

Source:
 * Wells, Jonathan, 1999. Second thoughts on peppered moths. This classical story of evolution by natural selection needs revising.
 * Wells, Jonathan, 2000. Icons of Evolution, Washington DC: Regnery Publishing Inc., pp. 137-157.

CreationWiki response:

It needs to be noted that the traditional peppered moth story is no way a threat to creation science. Not only do the peppered moths remain peppered moths but it does not even represent a change in the peppered moth gene pool but only a temporary shift in populations. The fact that Evolutionists even consider this evidence for evolution is a sign of desperation.

But it is not consistent with the traditional peppered moth story; which includes none of this; and that is the point Wells making.

Wells does seem to have made an error here, by concluding that Steward was referring to all of south Wales, rather than just Tongwynlais.