File:Holcorpa Maculosa Allotype AMNH-FI-18887 NPS Img1.jpg
Priabonian, Late Eocene; Florissant Formation, Florissant, Colorado, U.S.A.
American Museum of Natural History, New York, specimen #AMNH-FI-18887 (old number #AMNH-FI-104 Entomol.) Counterpart- University of Colorado Museum of Natural History, Boulder, Colorado, U.S.A. specimen #UCM-4494
collected in 1907 by S.A. Rohwer.