Captive breeding of two insular populations of Pachyrhynchus sarcitis (Coleoptera: Curculionidae) from Lanyu and Babuyan Islands

Huang, Lung Chun; Huang, Wen; Lin, Chung Ping; Nuñeza, Olga M.; Tseng, Hui Yun; Tang, Hsin Chieh

doi:10.1016/j.aspen.2018.09.004

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…While the optical properties of Pachyrhynchus weevils are well characterized and already fascinated several groups in the field, the understanding on how the structural color phenotype is inherited by hybrid weevils, and more in general for insects, is still missing, as it is challenging to grow these species in captivity. [ 37 ]…”

Section: Introductionmentioning

confidence: 99%

Hereditary Character of Photonics Structure in Pachyrhynchus sarcitis Weevils: Color Changes via One Generation Hybridization

Chang

Ogawa

Jacucci

et al. 2020

Advanced Optical Materials

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Pachyrhynchus sarcitis weevils are flightless weevils characterized by colored patches of scales on their dark elytra. The vivid colors of such patches result from the reflection of differently oriented 3D photonic crystals within their scales. The results show that hybrid P. sarcitis, the first filial generation of two P. sarcitis populations from Lanyu Island (Taiwan) and Babuyan Island (Philippines), mixes the color of its ancestors by tuning the photonic structure in its scales. A careful spectroscopical and anatomical analysis of the weevils in the phylogeny reveals the hereditary characteristics of the photonic crystals within their scales in terms of lattice constant, orientation and domain size. Monitoring how structural coloration is inherited by offspring highlights the versatility of photonic structures to completely redesign the optical response of living organisms. Such finding sheds light onto the evolution and development mechanisms of structural coloration in Pachyrhynchus weevils and provides inspiration for the design of visual appearance in artificial photonic materials.

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Section: Introductionmentioning

confidence: 99%

Hereditary Character of Photonics Structure in Pachyrhynchus sarcitis Weevils: Color Changes via One Generation Hybridization

Chang

Ogawa

Jacucci

et al. 2020

Advanced Optical Materials

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“…We reared one teneral weevil (130.8 mg) in the laboratory from the egg of the field-collected weevils following the rearing method in Huang et al . [18].…”

Section: Methodsmentioning

confidence: 99%

“…Once a week, we supplied the weevils with the leaves of their known host plant, Leea guineensis (Leeaceae), or L. sambucina as a substitute. We reared one teneral weevil (130.8 mg) in the laboratory from the egg of the field-collected weevils following the rearing method in Huang et al [18].…”

Section: Animalsmentioning

confidence: 99%

Strong attachment as an adaptation of flightless weevils on windy oceanic islands

Wang,

Lin,

Gorb

et al. 2023

J. R. Soc. Interface.

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Enhanced attachment ability is common in plants on islands to avoid potential fatal passive dispersal. However, whether island insects also have increased attachment ability remains unclear. Here we measured the attachment of a flightless weevil, Pachyrhynchus sarcitis kotoensis , from tropical islands, and compared it with documented arthropods from the mainland. We examined the morphology and material gradient of its attachment devices to identify the specific adaptive modifications for attachment. We find that the weevil has much stronger attachment force and higher safety factor than previously studied arthropods, regardless of body size and substrate roughness. This probably results from the specific flexible bases of the adhesive setae on the third footpad of the legs. This softer material on the setal base has not been reported hitherto and we suggest that it acts as a flexible hinge to form intimate contact to substrate more effectively. By contrast, no morphological difference in tarsomeres and setae between the weevil and other beetles is observed. Our results show the remarkably strong attachment of an island insect and highlights the potential adaptive benefits of strong attachment in windy island environment. The unique soft bases of the adhesive hairs may inspire the development of strong biomimetic adhesives.

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“…The eggs were checked everyday until the larvae were hatched. The larvae were fed on fresh sweet potatoes (replaced every week) until they become adults following protocols provided in Huang et al (2018).…”

Section: Methodsmentioning

confidence: 99%

Eggs survive through avian guts—A possible mechanism for transoceanic dispersal of flightless weevils

Lin

Liou

et al. 2021

Ecology and Evolution

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Captive breeding of two insular populations of Pachyrhynchus sarcitis (Coleoptera: Curculionidae) from Lanyu and Babuyan Islands

Cited by 4 publications

References 29 publications

Hereditary Character of Photonics Structure in Pachyrhynchus sarcitis Weevils: Color Changes via One Generation Hybridization

Hereditary Character of Photonics Structure in Pachyrhynchus sarcitis Weevils: Color Changes via One Generation Hybridization

Strong attachment as an adaptation of flightless weevils on windy oceanic islands

Eggs survive through avian guts—A possible mechanism for transoceanic dispersal of flightless weevils

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