PROC. ENT. SOC. WASH., VOL. 63, NO. 4, DECEMBER, 1961 247 THE VERNON L. KELLOGG MALLOPHAGA TYPE MATERLA.L IN THE UNITED STATES NATIONAL MUSEUM K. C. Emerson, 2511 N. Jefferson, Arlington, Va. Only in a few instances did Kellogpr indicate the disposition of type material listed in his taxonomic papers. In 1896, he stated "Types of the new species described will be placed in the collections of this University (Stanford), in the collections of the California Academy of Sciences, and in those of the University of Kansas." The Kellofrg type material in the Snow Entomological Museum of the University of Kansas was reported by the author in 1958. During a visit to San Francisco, California, during the summer of 1958, Dr. Edward S. Ross stated that all Kellogg type material deposited in that insti-tution was destroyed during the earthquake of 1906. Even though Kellogg did not publish information to the effect that some of his type material was deposited in the USNM, more is in that collection than in the Snow Entomological Museum. Kellogg did not designate a holotype or type, but considered all material examined as cotypes. In some instances, the series he examined contained material from several hosts and are known to contain more than one species of Mallophaga. During the last few years, several workers have selected as lectotype the specimen which Kellogg used in illustrating his descriptions ; thereby doing much to clarify the status of these species. Much remains to be done before this task is completed. In this paper, all sjiecimens conspecific with the lectotype are accepted as syntypes. Specimens not conspecific with the lectotype are regarded as no longer being syntypes. If a lectotype has not been designated, all specimens listed by Kellogg are considered to still be syntypes. In some instances, cotype labels were placed on material not examined at the time of the description. This material is listed in subsequent publications, and is not accepted by the author as part of the type material. In the last twenty years, I have examined most of the Kellogg type material, and have found that errors on his labels are not uncommon. The percentage found in the U. S. National Museum Collection is not excessive. 1 am indebted to the staff of the U. S. National Museum for per-mission to study this material, and especially to C. P. W. Muese-beck for his assistance and suggestions. Colpocephalum osborni Kellogg, 1896. Proe. Calif. Acad. Sci., 6: 521, pi. 71, figs. 2 and 3. Type slide USNM 64940. Two male syntypes with label "Colpo-cephalum osborni Kellogg, From Elanus glaucus, Palo Alto, Cal., V. L. Kellogg, Stanford." Present status: Colpocephalum oshorni Kellogg, 1896,