They are found in Alaska, central and southeastern Canada, south through much of the U.S. and into Northern Mexico.
They live in pastures, fields and meadows.
They are light yellow with wide black wing edges. Females have yellow spots in the black border. Underneath, they are greenish-yellow. They have a wingspan of up to 2.5".
Males fly around quickly looking for females.
The caterpillar feeds on clover.
The females lay one egg on a clover leaf. When the caterpillar hatches, it will start eating leaves.
Species: P. sennae
When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).
When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.
Amsel, Sheri. "Butterfly (Sulfur)" Exploring Nature Educational Resource ©2005-2019. September 18, 2019
< http://www.exploringnature.org/db/view/Butterfly-Sulfur >