No. 5. — The Fulgorina of Barro Colorado and Other Parts of Panama By Z. P. Metcalf In the summer of 1924 Mr. Nathan Banks, Curator of Insects of the Museum of Comparative Zoology of Harvard University spent some time collecting insects on Barro Colorado Island, Gatun Lake, Canal Zone. Among these was a large number of Fulgorids. These he turned over to me for study. At about the same time Mr. C. H. Curran, Assistant Curator of Insect Life of the American Museum of Natural History called my attention to a number of Fulgorids in their collec-tions from Barro Colorado. Still later Mr. Paul Oman, Curator of Homoptera of the United States National Museum, separated the material in their collections from Barro Colorado and sent it to me for study. These three collections together with a considerable collection which I have from Central and South America formed the nucleus for a report which would supplement the reports of Distant and Fowler in the Biologia. I suggested this to Mr. Banks and he agreed to its publication. CLASSIFICATION USED In the present report I have used the general classification developed recently by Muir (1930c) and have supplemented this general classi-fication with special works in more restricted groups especially the work of Melichar, Muir, Schmidt and Jacobi. I have tried as far as possible to identify the species included in the Biologia. I have, also, attempted in so far as material would permit to rehabilitate the genera established by Stal, and to modernize the descriptions. Whether I have been even partially successful in this, time alone, can tell. Stal's descriptions and keys are concise, but are mostly without illustrations and whether we have always correctly translated and interpreted these descriptions is still another matter. The general Illustrations in the Biologia are wonderful but the details and descriptions leave much to be desired. Color alone is not a very trustworthy taxonomic character, but I have done the best I could with the material available. This amounts almost to a revision of certain families like the Achilidae and Fulgoridae, where very little work has been done recently, and the new material has necessitated considerable revision in other families and especially in certain genera.