| Literature | Christy and Wagner 1996; Koch 1950a (based on Sayre 1935). |
| Illustrations | Crum and Anderson 1981; Ignatov and Ignatova 2003; Ireland 1982; Lawton 1971. |
| Notes | Christy and Wagner (1996) reference California within the species range. A population about 35 air miles north of the California/Oregon state line appears to be the southernmost record. This species is highly probable to occur in California. Not yet found in CA but known from OR. |
| Vouchers | OREGON: Jackson Co.: Blue Lake Basin, Sky Lakes Wilderness, Rogue River National Forest, Norris 52452. |
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