Journal article

Pachyrhynchus Weevils Use 3D Photonic Crystals with Varying Degrees of Order to Create Diverse and Brilliant Displays

DOKPE

Show more…
  • 2022
Published in:
  • Small. - Wiley. - 2022, p. 2200592
English The brilliant appearance of Easter Egg weevils, genus Pachyrhynchus
(Coleoptera, Curculionidae), originates from complex dielectric nanostructures
within their elytral scales and elytra. Previous work, investigating
singular members of the Pachyrhynchus showed the presence of either quasiordered
or ordered 3D photonic crystals based on the single diamond
(Fd 3m) symmetry in their scales. However, little is known about the diversity
of the structural coloration mechanisms within the family. Here, the optical
properties within Pachyrhynchus are investigated by systematically identifying
their spectral and structural characteristics. Four principal traits that vary
their appearance are identified and the evolutionary history of these traits
to identify ecological trends are reconstructed. The results indicate that the
coloration mechanisms across the Easter Egg weevils are diverse and highly
plastic across closely related species with features appearing at multiple independent
times across their phylogeny. This work lays a foundation for a better
understanding of the various forms of quasi-ordered and ordered diamond
photonic crystal within arthropods.
Faculty
Faculté des sciences et de médecine
Department
AMI - Physique de la matière molle
Language
  • English
Classification
Physics
License
CC BY-NC
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/319838
Statistics

Document views: 9 File downloads:
  • Small - 2022 - Parisotto - Pachyrhynchus Weevils Use 3D Photonic Crystals with Varying Degrees of Order to Create Diverse.pdf: 4