Abundance: 0.00 to 1.23% (median 0.19%)

Latitudinal range: 38.4° to 45.8°

Habitats: (2), Mediterranean woodland (1), temperate broadleaf/mixed forest (3)

Found in 6 samples

United States: Sandrock Cliff (spring), Sandrock Cliff (fall), Hopland Research and Extension Center, Dawes County (in-channel), Haystack Cave (lower levels) (Late Pleistocene), Meyer Cave (Holocene)

See also Sialia mexicana, Sialia sialis, Sialia sp.