Coliadinae


Coliadinae, the sulphurs or yellows, are a subfamily of butterflies with about 300 described species.
There are 36 species in North America, where they range from Mexico to northern Canada. In most species, males are easily distinguished from females. For example, in the genera Colias and Gonepteryx), males exhibit brilliant UV reflections that the females lack.

Systematics

The Coliadinae can be arranged in the three traditional tribes and a basal lineage, with one genus of unclear placement. The taxa—including some selected species—are arranged here in the presumed phylogenetic sequence, from the most ancient lineages to the most modern ones:
Basal lineage
Euremini
Goniopterygini
Coliadini
Incertae sedis