Fig. 1

Electroretinograms (ERGs) showing the spectral sensitivities of a female Aedes aegypti [31], b female Culex pipiens [32], c female Lutzomyia longipalpis [33], d Glossina morsitans [34], e male Simuliid blackflies [36], f young, female Tabanus nigrovittatus [35], g Stomoxys calcitrans [37] and h female Haematobia irritans [37]. Figure is adapted from original publications [31,32,33,34,35,36,37]. Studies differ in their methods and specimens (age, sex, chromatic adaptation, etc). Ultraviolet and blue/green wavelengths are highlighted in grey