| | | holotype of species Hesperoperla hoguei Baumann & Stark, 1980 | Southwestern U.S.A., California, Mendocino County: Gibson Creek, 1 mi W Ukiah, Mendocino Co., California, 6-IX-1976, C. L. Hogue |
| | | allotype of species Hesperoperla hoguei Baumann & Stark, 1980 | Southwestern U.S.A., California, Butte County: Toadtown, 3000 ft, 4 miles SW Stirling City, Butte Co., California, 9-IX-1976, C. L. Hogue |