WELCOME TO
Biology 250
Western White
Pontia occidentalis
Description
Upperside of forewing has marginal markings that are lighter than the submarginal stripe. Below, forewing tip and hindwing have veins outlined with gray-green. Short-day spring and fall forms have more prominent markings.
Caterpillar Diet
Flowers and fruits of various members of the mustard family.
Adult Food
Flower nectar.
Habitat
Mountain peaks, slopes, hilltops, railroad yards, open plains, roadsides.
Description
Wings are dark brown. Upperside of both wings with white-centered submarginal eyespots in a yellow-orange patch. Underside of forewing is similar to the upperside; hindwing is gray with submarginal black eyespots.
Caterpillar Diet
Probably grasses.
Adult Food
Flower nectar.
Habitat
Moist open grassy fields, meadows, high prairies, open forests.
Erebia epipsodea
Common Alpine
Description
Body stout; black to metallic green. abdomen has three yellow crossbands. Wings are clear.
Diet
Flower nectar
Habitat
open grassy fields, open woods
Eupeodes americanus
