Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Western sulphur butterfly

Colias occidentalis


Sulphur butterflies have wings that are usually yellow or orange with a black border.


The Western sulpher butterfly can be found in open areas including meadows, sagebrush flats, conifer forest openings. This butterfly was spotted in a field in Des Moines Iowa.

Species ID Suggestions

Sign in to suggest organism ID

No Comments
Spotted by

Des Moines, Iowa, USA

Spotted on Aug 21, 2015
Submitted on Aug 21, 2015

Related Spottings

Clouded Yellow Clouded Sulphur Clouded yellow Orange Sulphur

Nearby Spottings

cicada killer 17 year cicada Arion Red Slug Spotting