Diurnal and nocturnal hawkmoths have been shown to use colour vision for flower
discrimination. Here, we present evidence that the nocturnal hawkmoth Deilephila elpenor …

The diurnal hummingbird hawkmoth Macroglossum stellatarum can learn the achromatic
(intensity-related) and the chromatic (wavelength-related) aspect of a spectral colour. Free …

Hymenopterans have long been shown to choose colours by means of the spectral
distribution and independently of the intensity (true colour vision). The same ability has only …

Diurnal and nocturnal hawkmoths (Sphingidae, Lepidoptera) have three spectral types of
receptor sensitive to ultraviolet, blue and green light. As avid flower visitors and pollinators …

Recent studies have shown that certain nocturnal insect and vertebrate species have true
color vision under nocturnal illumination. Thus, their vision is potentially affected by changes …

Macroglossum stellatarum is a diurnal member of the otherwise crepuscular sphin-gid
family. The moths of this species are known to visit flowers of almost all colors, sizes, and …

Studies on animal colour vision typically focus on the chromatic aspect of colour, which is
related to the spectral distribution, and disregard the achromatic aspect, which is related to …

We investigated colour discrimination and learning in adult males of the nocturnal cotton
bollworm moth, Helicoverpa armigera, under a dim light condition. The naive moths …

Flower colour is an important signal used by flowering plants to attract pollinators. Many
anthophilous insects have an innate colour preference that is displayed during their first …

The diurnal hawkmoth Macroglossum stellatarum is known to feed from a variety of flower
species of almost all colours, forms and sizes. A newly eclosed imago, however, has to find …