Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 101. (Budapest 2009)

Bálint, Zs., Moser, A., Kertész, K., Biró, L. P. & Parker, A. R.: A supposition: structural colours resulting from both natural and sexual selection on an individual wing in the butterfly genus Cyanophrys (Lepidoptera: Lycaenidae)

72 Zs. Bálint, A. Moser, K. Kertész, L. P. Biró & A. R. Parker 50 40 (1) 30 o c TO O £ 20 <v o: 10 o 200 400 600 800 Wavelength (nm) Fig. 24. Spectral properties of four Cyanophrys species representing females measured in the dorsal surface of the right fore wing discal cell: C. acaste (PRITTWITZ, 1865) = 28, C. amyntor (CRAMER, 1775) = 29, C. pseudolongula (CLENCH, 1946) = 25, and C. remus (HEWITSON, 1868) = 22 Ventral wing surfaces The green ventral wing surfaces were almost equal in all species and sexes. Reflectance spectra in all the species revealed single peaks (Fig. 25). The UV and blue range reflectance remained below or at around 10%, then the reflectance curve increased sharply to reach a reflectance peak at around 585 nm - corresponding to the green colour observed by naked eye - then after a slight descent it ascended at wavelengths above 600-650 nm. These high reflectances beyond 600 nm may be due to a melanin pigment (see BÁLINT et al. 2005, PRÜM et al. 2006). The only difference between species and sexes is the intensity of their reflectance peaks. Cyanophrys argentiniensis revealed the lowest spectral reflectance peak, but in general this species is the less reflective anyway, with a relatively low dorsal wing reflectivity also. In general, the only .difference between species and sexes is the intensity of their reflectance peaks. Annls hist.-nat. Mtis. natn. hung. 101, 2009