Abstract:
:The evolution of wing pattern in Lepidoptera is a popular area of inquiry but few studies have examined microlepidoptera, with fewer still focusing on intraspecific variation. The tineid genus Moerarchis Durrant, 1914 includes two species with high intraspecific variation of wing pattern. A subset of the specimens examined here provide, to my knowledge, the first examples of wing patterns that follow both the 'alternating wing-margin' and 'uniform wing-margin' models in different regions along the costa. These models can also be evaluated along the dorsum of Moerarchis, where a similar transition between the two models can be seen. Fusion of veins is shown not to effect wing pattern, in agreement with previous inferences that the plesiomorphic location of wing veins constrains the development of colour pattern. The significant correlation between wing length and number of wing pattern elements in Moerarchis australasiella shows that wing size can act as a major determinant of wing pattern complexity. Lastly, some M. australasiella specimens have wing patterns that conform entirely to the 'uniform wing-margin' model and contain more than six bands, providing new empirical insight into the century-old question of how wing venation constrains wing patterns with seven or more bands.
journal_name
R Soc Open Scijournal_title
Royal Society open scienceauthors
Schachat SRdoi
10.1098/rsos.161002subject
Has Abstractpub_date
2017-03-01 00:00:00pages
161002issue
3issn
2054-5703pii
rsos161002journal_volume
4pub_type
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