36 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



dubia WiLLisTON (Masicera), Scudder's Butterflies of New England, vol. 3, 

 p. 1924, 1889. 



Coquillett (Revision of N. A. Tacbinidae, p. 108, 1897) considered dubia 

 synonymous with violenta Walker but Aldrich (Cat. Dipt., p. 463, 1905) 

 does not agree, believing it to be distinct. Tbe species was bred by Riley 

 from Vanessa antiopa Linnaeus and from Pholus {Philampelus) vitis 

 Linnaeus by Pergande. West (N. Y. List of Insects, p. 815, 1926) lists 

 dubia from New York. The type is apparently lost. The species is 

 unrecognized. 



dydas Walker (TacMna), Walker's List Dipt. Insects, pt. 4, p. 748, 1849. 



According to Austen (Ann, and Mag. Nat. Hist., ser. 7, vol. 19, p. 336, 

 1907), dydas Walker equals Eutachina rustica Meigen. 



fernaldi Williston (Achaetoneura). In Forbush and Fernald's "The Gipsy 

 Moth," Mass. Board of Agriculture, p. 387, 1896. 



Assigned to Achaetoneura by describer. Coquillett (Revision of N. A. 

 Tachinidae, p. 119, 1897) correctly places this species as a synonym of 

 Tachina mella Walker. 



flavicauda Riley (Exorista), Riley's Second Report, Insects Missouri, p. 51, 

 1870, reared from Leucania vnipuncta. Townsend (Trans. Amer. Ent. Soc, 

 vol. 18, p. 364, 1891, and Psyche, vol. 7, p. 330. 1896) refers this species to 

 Frontina. Coquillett (Revision of N. A. Tachinidae, p. 84, 1897) and 

 Aldrich (Cat. Dipt., p. 450, 1905) correctly place the species as a synonym 

 of Belvosia unifasciata Desvoidy. 



fulvipalpis Bigot (Masicera), Ann. Ent. Soc. France, p. 263, 1888, Rocky Moun- 

 tains. — Brauer, Sitzungsbericht d. k. Akad., vol. 106, p. 340, 1S97, gen. ref. 

 from type. Unrecognized. 



insularis Brauer and Bergenstamm (Prosopaea), Zweif. Kais. Mus. Wien, pt. 5, 

 p. 334, 1891, St. Thomas, W. I. 



Placed in Prospalaea, new genus, by Aldrich (Ann. Ent. Soc. Amer., vol. 

 18, p. Ill, 1925). 



irrequieta Walker (Tachina) , Walker's List Dipt. Insects, vol. 4, p. 789, 1849. 

 Coquillett (Revision of N. A. Tachinidae, p. 108, 1897) recognized this 

 species in material bred from Papilio thoas Linnaeus from Jacksonville, 

 Fla. He also considered Masicera rileyi Williston as synonymous with it. 

 Aldrich (Cat. Dipt, p. 463, 1905) did not agree with Coquillett, holding that 

 rileyi was distinct and that Walker's species was unrecognizable. 

 Aldrich's view is in accord with that of the present author. 



lata WiEDMANN (Tachina), Auss. Zweifl., vol. 2, p. 322, 1830. 



Assigned to Achaetoneura by Brauer and Bergenstamm (Zweif. Kais. 

 Mus. Wien, pt. 5, p. 334, 1891). Aldrich (Proc. U. S. Nat. Mus., No. 2703, 

 vol. 72, art. 7, p. 8, 1927) has studied tlie type and found characters that 

 would exclude it from Achaetoneura. Referred to Frontina. 



rubentis Coquillett (Achaetoneura) , Proc. Acad. Nat. Sci. Phila., p. 310, 1895. 



Placed in Frontina by Coquillett (Revision of N. A. Tachinidae, p. 106, 



1807). The different chaetotaxy, female with ventral abdominal keel 



armed with spines and with a sharp piercer, are characters which exclude 



it from Achaetoneura. Provisionally referred to Lydella by the writer. 



rufifrons Roeder (Frontina) , Stett. Ent. Zeit., p. 346, 1885, Porto Rico. 

 The species is unrecognized. 



rufostylata Bigot (Frontina) , Ann. Ent. Soc. France, p. 83, 1888, Mexico. 

 Aldrich (Cat. Dipt., p. 468, 1905) refers the species to Prospherysa. 



