Sternidius alpha (Say, 1826)
Lamia alpha Say, 1827: 270 .
Type locality — Syntypes: United States, Pennsylvania, Northwestern Territory (destroyed) .
Amniscus alpha var. divergens Haldeman, 1847: 48 .
Type locality— Holotype: United States, Pennsylvania (MCZN).
Leptostylus lateralis Melsheimer, 1853: 108 (cat.).
Type locality— Holotype: United States, Pennsylvania (MCZN).
Liopus cinereus LeConte, 1852: 173 .
Type locality— Syntypes: United States, Georgia (MCZN) .
Liopus xanthoxyli Shimer, 1868: without page.
Type locality— Holotype: United States, Illinois: Mount Carroll (USNM).
Liopus alpha var. floridanus Hamilton, 1896: 125 .
Type locality— Lectotype: United States, Florida: Biscayne Key (USNM).
Leiopus dentatus Casey, 1913: 312 .
Type locality— Holotype female: United States, Illinois (USNM).
Leiopus testaceus Casey, 1913: 311 .
Type locality— Holotype female: United States, Diatrict of Columbia (USNM).
Leiopus scapalis Casey, 1913: 312 .
Type locality— Holotype female: United States, Indiana (USNM).
Leiopus pleuralis Casey, 1913: 312 .
Type locality— Lectotype; United States, District of Columbia (USNM).
Leiopus timidus Casey, 1913: 313 .
Type locality— Holotype female: United States, Pennsylvania (USNM).
Leiopus obscurellus Casey, 1913: 313 .
Type locality— Holotype female: United States, New York: Lake Champlain, Bluff Point (USNM).
Leiopus nelsonicus Casey, 1924: 291 .
Type locality— Holotype female: United States, Virginia, Nelson County (USNM).
Sternidius alpha coloradensis Dillon, 1956b: 216 .
Type locality— Holotype male: United States, Colorado: Colorado Springs (CASC).
Sternidius alpha nigricans Dillon, 1956b: 218 .
Type locality— Holotype female: United States, New Mexico: Tajique (SEMK)
Sternidius suturalis Dillon, 1956b: 218 .
Type locality— Holotype male: United States, Texas: Rockdale (TAMU).
Distribution— United States (California, Arizona, Idaho, Colorado, to eastern seaboard, south to Florida), Canada (southern Quebec to the Lake of the Woods area in northwestern Ontario).