ISBN: | 978-5-5122-1367-4 |
High Quality Content by WIKIPEDIA articles! The Cloudless Sulphur (Phoebis sennae) is a small to midsized butterfly in the family Pieridae found in the New World. There are several similar species such as the Yellow Angled-sulphur (Anteos maerula), which has angled wings, or other sulphurs, which are much smaller.