Identification: Geographically variable. Typical form from southern Oregon to western Montana that feed on sugar pine and ponderosa pine tend to have rust forewings with white bands. Populations in the eastern Sierra Nevadas that feed on lodgepole and Jeffery pine have dark brick-red forewings with dark grey markings.
Wing Span: 1.9-2.2 cm
Caterpillar Hosts: First recorded on sugar pine (Pinus lambertiana). (1) Subsequently found on a variety of pines and juniper.
Range: Throughout coniferous regions of the west.
We want to express our gratitude to all who showed their support by making a contribution this year. You can donate to support this project at any time.