IV.—Descriptions of Asiatic Diurnal Lepidoptera

Ultraviolet reflection and predation risk in diurnal and nocturnal Lepidoptera

According to our extensive data on Lepidoptera (883 species), UV wing patterns are almost three times more common in nocturnal than in diurnal Lepidoptera. This might be due to predation, because the primary diurnal predators, birds, utilize UV light in foraging and even prefer UV-reflecting prey. To test this hypothesis, we conducted a field experiment with tethered living moths whose wings we...

Comparative Studies on Dark Adaptation in the Compound Eyes of Nocturnal and Diurnal Lepidoptera

A ~ S T R A C T A comparative analysis has been carried out of the time course and range of dark adaptation in the compound eyes of some common butterflies and noctuid moths (Lepidoptera). The change in sensitivity of the eye during dark adaptation was determined by measurements of the intensity of illumination necessary to elicit an electrical response of a given magnitude of the eye. It was f...

Comparative Studies on Dark Adaptation in the Compound Eyes of Nocturnal and Diurnal Lepidoptera

A comparative analysis has been carried out of the time course and range of dark adaptation in the compound eyes of some common butterflies and noctuid moths (Lepidoptera). The change in sensitivity of the eye during dark adaptation was determined by measurements of the intensity of illumination necessary to elicit an electrical response of a given magnitude of the eye. It was found that the cu...

Studies Upon Asiatic Cholera

Everyone who has written upon the subject of cholera has pointed out that however familiar we may be with respect to the characters of the pathogenic organism discovered by Koch in I883, with regard to its pathogenicity the single fact actually known is that the presence of this vibrio in the intestinal mucosa causes the disease. But why do the vibrios undergo modifications in the body? Why do ...

A Treatise on Asiatic Cholera