2 literature references for Crepusia glauca Metcalf, 1923:

Author: Metcalf Z. P.
Year: 1923
Title: A key to the Fulgoridae of Eastern North America with descriptions of new species
Source: Journal of the Elisha Mitchell Scientific Society, 38: 139-230.
Author: Metcalf Z. P.
Year: 1938
Title: The Fulgorina of Barro Colorado and other parts of Panama
Source: Bulletin of the Museum of Comparative Zoology at Harvard College. Cambridge, Mass, 82: 277-423.