Investigation of hindwing folding in ladybird beetles by artificial elytron transplantation and microcomputed tomography

Proceedings of the National Academy of Sciences of the United States of America
Kazuya SaitoYoji Okabe

Abstract

Ladybird beetles are high-mobility insects and explore broad areas by switching between walking and flying. Their excellent wing transformation systems enabling this lifestyle are expected to provide large potential for engineering applications. However, the mechanism behind the folding of their hindwings remains unclear. The reason is that ladybird beetles close the elytra ahead of wing folding, preventing the observation of detailed processes occurring under the elytra. In the present study, artificial transparent elytra were transplanted on living ladybird beetles, thereby enabling us to observe the detailed wing-folding processes. The result revealed that in addition to the abdominal movements mentioned in previous studies, the edge and ventral surface of the elytra, as well as characteristic shaped veins, play important roles in wing folding. The structures of the wing frames enabling this folding process and detailed 3D shape of the hindwing were investigated using microcomputed tomography. The results showed that the tape spring-like elastic frame plays an important role in the wing transformation mechanism. Compared with other beetles, hindwings in ladybird beetles are characterized by two seemingly incompatible propert...Continue Reading

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Nov 5, 2014·Proceedings of the National Academy of Sciences of the United States of America·Kazuya SaitoYoji Okabe
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Mar 22, 2016·Proceedings. Mathematical, Physical, and Engineering Sciences·Kazuya SaitoYoji Okabe

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Citations

Oct 4, 2019·Proceedings of the National Academy of Sciences of the United States of America·J William BoleyL Mahadevan
Jul 15, 2020·Proceedings of the National Academy of Sciences of the United States of America·Kazuya SaitoZhong You
Sep 11, 2019·Physical Review. E·Taiju YonedaHirofumi Wada
Oct 7, 2020·Science Robotics·Sang-Min BaekKyu-Jin Cho
Oct 7, 2020·Scientific Reports·Pyotr N PetrovAlexey A Polilov
Nov 19, 2019·Biochimica Et Biophysica Acta. Biomembranes·Hay AzulayNir Qvit
Nov 3, 2020·Science Robotics·Woongbae KimKyu-Jin Cho
Dec 5, 2020·Science·Hoang Vu Phan, Hoon Cheol Park
Jan 28, 2021·Frontiers in Robotics and AI·Naoki HashimotoHideyuki Sawada
Apr 26, 2021·Computers in Biology and Medicine·Zelai SongJiyu Sun
Oct 16, 2021·Scientific Reports·Kazuya SaitoYoshihiro Kawahara
Jul 28, 2020·Biochimica Et Biophysica Acta. Biomembranes·Hay AzulayNir Qvit
Jul 5, 2020··Katarzyna StawarzSimon Robinson

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