Abstract Richard W. Holland (1940-2013) was an electrical engineer and a noted lepidopterist. His focus was on butterfly and moth species in the American Southwest, northern Mexico, and Baja California, as well as several islands globally. Dr. Holland collaborated frequently with the staff at the C.P. Gillette Museum of Arthropod Diversity at Colorado State University where his extensive Lepidoptera collection resides. The collection consists of photograph albums, framed photographs, slides of areas...