Orange sulphur butterflies are very common throughout North America. They have pale orange and yellow wings that you have ...

Some of the same species that graced us last month still continue, though in reduced numbers, like sleepy orange and dainty sulphur butterflies. Others that were occasional a few weeks ago have ...

“It’s kind of an overwhelming amount of loss and decline,” she says. An orange sulphur butterfly (Colias eurytheme) perches on a lantana plant. Lest you think the widespread declines are ...

This year the July butterfly count identified 34 butterfly species and five of them — orange sulphur, little metalmark, ceranus blue, soldier and the twin-spot skipper — were species the ...

Baptisia are host plants for several species of butterfly, including orange sulphur, clouded sulphur, frosted elfin, eastern tailed blue, hoary edge, and wild indigo duskywing. Also known as the ...

The team used its new camera system to show how a UV-sensitive bird sees orange sulphur butterflies in nature. Image: Daniel Hanley Scientists say they’ve invented a piece of technology that ...

In the study, the researchers looked at two species of North American butterflies: the orange sulphur (Colias eurytheme) and the clouded sulphur (Colias philodice). The wings of the male orange ...