Differences in spectral selectivity between stages of visually guided mating approaches in a buprestid beetle

Michael J. Domingue, Jonathan P. Lelito, Andrew J. Myrick, Gyo Rgy Csoka, Levente Szocs, Zoltan Imrei, Thomas C. Baker

Research output: Contribution to journalArticle

Abstract

Spectral mating preferences were examined in male Agrilus angustulus (Buprestidae: Coleoptera), a member of a taxon known for its high species diversity and striking metallic coloration. The spectral emission profile of a typical A. angustulus female displays low chroma, broadly overlapping that of the green oak leaves they feed and rest upon, while also including longer wavelengths. To pinpoint behaviorally significant spectral regions for A. angustulus males during mate selection, we observed their field approaches to females of five Agrilus planipennis color morphs that have greater chroma than the normal conspecific female targets. Agrilus angustulus males would initially fly equally frequently toward any of the three longest wavelength morphs (green, copper and red) whose spectral emission profiles all overlap that of typical A. angustulus females. However, they usually only completed approaches toward the two longest wavelength morphs, but not the green morphs. Thus, spectral preference influenced mate selection by A. angustulus males, and their discrimination of suitable targets became greater as these targets were approached. This increasing spectral discrimination when approaching targets may have evolved to allow female emissions to remain somewhat cryptic, while also being visible to conspecifics as distinct from the background vegetation and heterospecific competitors.

Original languageEnglish (US)
Pages (from-to)2837-2843
Number of pages7
JournalJournal of Experimental Biology
Volume219
Issue number18
DOIs
StatePublished - Sep 15 2016

Fingerprint

Beetles
beetle
morphs
Coleoptera
Agrilus
wavelengths
Marriage
mating behavior
wavelength
Agrilus planipennis
Buprestidae
color
Copper
species diversity
Quercus
Color
copper
vegetation
leaves

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Aquatic Science
  • Animal Science and Zoology
  • Molecular Biology
  • Insect Science

Cite this

Domingue, Michael J. ; Lelito, Jonathan P. ; Myrick, Andrew J. ; Rgy Csoka, Gyo ; Szocs, Levente ; Imrei, Zoltan ; Baker, Thomas C. / Differences in spectral selectivity between stages of visually guided mating approaches in a buprestid beetle. In: Journal of Experimental Biology. 2016 ; Vol. 219, No. 18. pp. 2837-2843.
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Differences in spectral selectivity between stages of visually guided mating approaches in a buprestid beetle. / Domingue, Michael J.; Lelito, Jonathan P.; Myrick, Andrew J.; Rgy Csoka, Gyo; Szocs, Levente; Imrei, Zoltan; Baker, Thomas C.

In: Journal of Experimental Biology, Vol. 219, No. 18, 15.09.2016, p. 2837-2843.

Research output: Contribution to journalArticle

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