Sternotomis callais

Sternotomis callais
	Sternotomis callais
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Family:	Cerambycidae
Genus:	Sternotomis
Species:	S. callais
Binomial name
	Sternotomis callais; Fairmaire, 1891

Sternotomis callais (African longhorn beetle) is a species of beetle in the family Cerambycidae. It was described by Léon Fairmaire in 1891. It is known from Cameroon, the Republic of the Congo, the Democratic Republic of the Congo, Equatorial Guinea, and Angola. It feeds on Coffea liberica var. dewevrei.^[1]

Brilliant green coloration[]

The scales on the African longhorn beetle exhibit a brilliant green color due to a photonic crystal-like periodic cuticle network, and the three-dimensional network of the cuticle was found to be modelled appropriately by the I-WP photonic crystal.^[2] Although described mathematically in 1970, this is the first time this kind of photonic crystal structure has been observed in nature. ^[3]

The I-WP-type minimal surface was mathematically found by Schoen in 1970, was named "I-graph-Wrapped Package graph surface" because it reminded Schoen of the arrangement of string on a simply wrapped package.^[4] The wavelength range of the green color corresponds to the frequency of the photonic band gap.^[2]

References[]

^ BioLib.cz - Sternotomis callais. Retrieved on 8 September 2014.
^ ^a ^b Kobayashi, Y.; Ohnuki, Y.; Yoshioka, S (10 November 2021). "Discovery of I-WP minimal-surface-based photonic crystal in the scale of a longhorn beetle". Journal of the Royal Society Interface. 18 (184). doi:10.1098/rsif.2021.0505. PMC 8580427. PMID 34753307. Retrieved February 15, 2022.
^ Yirka, Bob (November 11, 2021). "New type of photonic crystal structure found in longhorn beetle". Phys.org. Retrieved February 15, 2022.
^ Schoen AH (1970). "NASA Technical Note TN D-5541". Infinite periodic minimal surfaces without self-intersections (PDF) (Report). NASA Electronics Research Center. p. 58. Report no. C-98. Retrieved February 15, 2022.

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[1] BioLib.cz - Sternotomis callais. Retrieved on 8 September 2014.

[Kobayashi2021-2] Kobayashi, Y.; Ohnuki, Y.; Yoshioka, S (10 November 2021). "Discovery of I-WP minimal-surface-based photonic crystal in the scale of a longhorn beetle". Journal of the Royal Society Interface. 18 (184). doi:10.1098/rsif.2021.0505. PMC 8580427. PMID 34753307. Retrieved February 15, 2022.

[3] Yirka, Bob (November 11, 2021). "New type of photonic crystal structure found in longhorn beetle". Phys.org. Retrieved February 15, 2022.

[4] Schoen AH (1970). "NASA Technical Note TN D-5541". Infinite periodic minimal surfaces without self-intersections (PDF) (Report). NASA Electronics Research Center. p. 58. Report no. C-98. Retrieved February 15, 2022.

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