2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 70 



Genus WINTHEMIA Robineau-Desvoidy 



Winthemia Robineau-Desvoidy, Myodaires, p. 173, 1830. [Type, Musca varie- 

 gata Fabricius, originally included, by designation of Robineau-Desvoidy, 

 Dipt. Env. Paris, vol. 1, p. 207, 1863. Although M. variegaia was not de- 

 scribed by Fabricius but as Tachina variegaia (Syst. Reschr., vol. 4, p. 256, 

 1824), Robineau-Desvoidy in 1830 and 1863 included the reference to Tachina 

 variegata Meigen, leaving no doubt as to the species intended. But sin(;e 

 Tachina variegata Meigen equals Musca quadripustulata Fabricius (Stein, 

 Aus. Nachr., vol. 26, p. 150, 1900), the latter, also an originally included 

 species, becomes the genotype.] — Coquillett, Revis. Tachin., p. 124, 1897. — 

 Aldbich, Catalogue, p. 473, 1905. — Adams, in Williston's North Amer. Dipt., 

 p. 375, 1908.— ToTHiLL, Can. Ent., vol. 44, p. 1, 1912. 



Microtrichodes Macquaet, Dipt. Exot., suppl. 1, p. 288, 1846. [Type designated, 

 analis, new species. I have not seen the type.] 



Masipoda Bkaueb and Bergenstamm, Zweifl. Kais. Mus., vol. 4, p. 162, 1889. 

 [Type designated, geminata, new species. Not examined by the writer.] 



Trisisyropa Townsend, Ins, Insc. Menst., vol. 4, p. 28, 1916. [Type designated, 

 vesiculata, new species. I have seen the type.] 



Okea Townsend, Ins. Insc. Menst., vol. 4, p. 74, 1916. [Type designated, Win- 

 themia oJcefenokeensis Smith. I have examined the type.] 



Neoiointhemia Townsend, Proc. U. S. Nat. Mus., vol. .^6, p. 583, 1919. [Type 

 designated, ahdominalis, new species. I have examined the type specimen.] 



Nemosturmia Townsend, Ins. Insc. Menst., vol. 14, p. 34, 1926. [Type designated, 

 pilosa, new species. Equals Winthemia fumiferanae Totbill, according to 

 Aldrich, Bull. Brooklyn Ent. Soc, vol. 22, p. 24, 1927 ; subsequently verified 

 from the type by Doctor Aldrich in correspondence.] 



Hemimasipoda Townsend, Revista Museu Paulista, vol. 15, p. 267, 1926. [Type 

 designated, l)rasiliensis, new species. Equals Winthemia pinguis Fabricius. 

 I have examined a type specimen.] 



In submitting the above synonymy I should point out that there is 

 no type specimen of quadripustulata in existence, and it is only in a 

 traditional sense that the name Winthemia can be used at all. I have 

 accepted Dr. J. Villeneuve's determination for the species and deem 

 it expedient to make no further attempt in obtaining a name based 

 upon an unquestioned genotype. The ultimate solution of this prob- 

 lem rests with European dipterists. Since the name is accepted by 

 them, it appears logical for us to concur ; although we are employing 

 a name here that is open to question, we have the consolation of retain- 

 ing a well-known and a long-used name that is almost as old as the 

 science of dipterology itself. 



The American species of Winthemia are strikingly uniform in 

 most of their characters, and even those forms that show specializa- 

 tions in the structure of the fore tarsi are well within the range of 

 the rest of the genus. The latter is fully recharacterized below from 

 the type species quadripustulata^ as determined by Dr. J. Villeneuve. 

 On the following pages an attempt has been made to characterize 

 adequately each American species to distinguish it from quadripus- 

 tulata and the other known forms without the profitless repetition 

 of all details identical with the type species. 



