NO. 3 NEOTROPICAL FLIES, TABANIDAE — FAIRCHILD 9 



Museum, "M. P." for the Museum d'Histoire Naturelle in Paris. 

 Names of which I have seen the types are preceded by an asterisk (*). 

 Where I was able to match the type with a specimen in my possession 

 I have placed an (H) after the location of the type. Some of these 

 specimens are the property of the U. S. National Museum or the 

 Museum of Comparative Zoology at Harvard University, and will be 

 returned to those collections. The remainder are in my collection and 

 will be retained for the time being. 



Names which appear to be valid are in boldface; all others in 

 italics. Synonymy believed to be new is indicated by (N. S.). In the 

 case of confirmation of older synonymy, an attempt has been made to 

 indicate the earliest authority for it, although in some cases this has 

 not been possible. Since I have not examined the types of Wiede- 

 mann's species, cases where his names appear to be the earliest valid 

 ones are accepted from the literature. 



The supraspecific categories of Neotropical Tabanidae are still in a 

 chaotic condition, though Dr. I, M. Mackerras has in preparation a re- 

 vision of the whole family, and I have been privileged to see his manu- 

 script. Most of the names here used are in the sense of Krober's 

 (1934) catalog, the exceptions being the following: Fidena includes 

 Fidenu and Melpia of the catalog. Scaptia s.s. includes Osca and Cal- 

 liosca. Scaptia subgenus Pseudoscione includes Listriosca, Listrapha, 

 Parosca, Listraphella, and probably Lilaenaoi the catalog. Stenotabanus 

 includes all the small Tabaniis-like species with bare subepaulets and at 

 least some of the species placed in Stypommia and Stypommisa in the 

 catalog. Aegialomyia is treated as a subgenus of Stenotabanus. Dasy- 

 basis is used for the species placed in Agelanius in the catalog, follow- 

 ing Stone (1944), the criterion being bare subepaulets, generally 

 broad frons, and often pilose eyes, the species being mainly Chilean, 

 Dasychela End. is used for those species with generally hairy eyes, 

 long antennal tooth, bare subepaulet, and fleshy labella placed in 

 Dicladocera in the catalog. The bulk of the species are from Colombia, 

 Ecuador, and Peru. Dicladocera is retained for the mainly southern 

 Brazilian forms, which differ in having usually bare eyes and more or 

 less sclerotized labella. Dichelacera includes Catachlorops, Amphichlo- 

 rops, and Psalidia as subgenera. Tabanus includes Allioma and Che- 

 lommia of the catalog, and, in fact, all Tabaninae with setose subepau- 

 lets except Leucotabanus. Lophotabanus, Hybomitra, Philipotabanus, 

 and Hemichrysops are retained as subgenera. Future careful work 

 will no doubt modify many of the above categories, but this is not the 

 place for detailed discussion of generic concepts. If the species ap- 

 pears to have been correctly placed generically by the original de- 



