Willowsia platani is an aerial species resistant to desiccation and is found on trees and in buildings. This species has a variable pattern of pigmented bands and spots on the dorsal side (some specimens are much paler than those shown here):
Willowsia platani has characteristic leaf-shaped scales:
The mucro has two teeth and there is a spatulate tenant seta:
The empodium is about two-thirds the length of the claw:
In contrast, Willowsia buski is a plainer-looking species. The scales are a different shape, more triangular then W. platani. Photo by Philippe Garcelon:
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