In May 1974 four male spotted bats were netted near St. George, Utah. Contrary to published speculation on Euderma, indications are that the spotted bat in southwest Utah (1) is not a late flyer, (2) does not feed solely on moths, (3) may drop to the ground on occasion to forage, (4) is not a rapid flyer, and (5) appears to utilize crevices as roosting sites.
Poché, Richard M. and Bailie, Geoffrey L.
"Notes on the spotted bat (Euderma maculatum) from southwest Utah,"
Great Basin Naturalist: Vol. 34
, Article 2.
Available at: http://scholarsarchive.byu.edu/gbn/vol34/iss4/2