Bridges' bibliography (1993) was the first major compilation of worldwide butterfly bibliography. Previous works on partial or regional bibliographies include Gilbert, 1978 (A Compendium of the Biographical Literature on Deceased Entomologists), Carpenter, 1945 & 1953 (Bibliography of Biographies of Entomologists), Horn and Schenkling, 1928 (Index Litteraturae Entomologicae, Serie I), Derksch and Scheiding-Gollner, 1965 (Index Litteraturae Entomologicae, Serie II), the Conmemoralive Volume of the Lepidopterists' Society, Moulds, 1977 (Bibliography of the Australian Butterflies), Field, dos Passes & Masters, 1974 (A Bibliography of the Catalogs, Lists, Faunal and Other Papers of the Butterflies of North America North of Mexico), Kudma, 1985 (Butlerflies of Europe, Volume I. Concise Bibliography). The original work of Bridge is available at BHL, but no updates are available.
Lamas' bibliography of Neotropical butterflies was originally published in 1995, and updated editions have been made available electronically, the latest (2013) is available from Butterflies of the Americas, which also has an electronic reference library.
Williams' bibliography for Afrotropical butterflies is available from his site, they include references from 1973 to 2007.
Author's pages with lists of publications