188 TKYPET.DAE. 



Ortalide described by breviaus writers, but not known to Mr. 

 Loew, when he repared his Monograph. The descriptions are 

 reproduced in the Appendix to Monographs etc. Vol. Ill, 197 

 203, and discussed by Mr. Loew (except Oiinlis platystoma 

 Thomson , which was added by me). I reproduce Dr. Loew's 

 comments, together with my remarks on the original types seen by me. 



Ortalis ligata Say, J. Acad. Phil. VI, 83; Compl. Wr. II, 368. - 

 Mexico. [Probably EirclUa. Lw]. 



Meckclia philadelphica R. Desvoidy, Myod. 715. Philadelphia. 

 [Probably Ceroxys or Anacampta. - - Lw.]. 



Ortalis basalis Walker, Dipt. Saund., 373. - United States. [Not 

 Ceroxys, as Walker suggests; perhaps an Ulidina. Lw.] I could 

 not find it in the Brit. Mus. ; the Ortalis basalts which I saw 

 there, is from Tasmania. 



Ortalis Massyla Walker, List, etc. IV, 992. North America. [Seems 

 to be an Euxesta. - - Lw.]. I took it for Chaetopsis aenea. 



Ortalis (2) diopsides Walker, List, etc. IV, 995. - - Huds. B. Terr. 

 [Belongs perhaps to the Ulidina. - - Lw.j. 



Ortalis (?) costalis Walker, List, etc. IV, 995. - Huds. B. Terr. 

 [Probably likewise an Ulidina? Lw.]. Represented in the 

 Brit. Mus. by a fragment without a head, and with only one 

 wing; looks like Sepsis. 



Ortalis bipars Walker, Trans. Ent. Soc. N. Ser. V, 326. - - United 

 States. (I could not find it in the Brit. Mus.). 



Bricinnia flexivitta Walker, Trans. Ent. Soc. N. Ser. V, 324. 

 Mexico. (I did not find this species in the Brit. Mus.). 



Urophora interrupta Macquart, Hist. Nat. Dipt. II, 459. - - North 

 America. [Is a Eivellia of difficult interpretation. Lw., Monogr. 

 Ill, 337, 32.] 



Urophora antillarum Macquart, Dipt. Exot. 4e Suppl. Tab. XXVI, 

 f. 17. West Indies. [Almost undoubtedly an Ulidina. - - Lw.]. 

 The typical specimen in Mr. Bigots collection is an exceedingly 

 soiled, hardly recognizable specimen, but looks very much like 

 an Euxesta. 



TJlidia fulvifrons Bigot in R. de la Sagra, etc. 826. - - Cuba. [Not 

 an Ulidia; may belong to the Ulidina. - Ulidia metallic'!, de- 

 scribed in the same place belongs to the Agromyzidae. - - Lw.]. 

 I have not seen the specimen in Mr. Bigots collection. 



Ortalis platystoma Thomson, Eugen. Resa etc. 572. Panama. 



FAMILY TRYPETIDAE. ( 303 ). 



Trypcta. 



Meigen, in Illiger's Magaz. II, 1803. 



Subgenus Hexachaeia 

 Loew, Monogr. IH, 219; Observ. 2; 1873. 



*eximia Wiedemann, Auss. Zw. II, 477; Loew, Monogr. etc III, 216. 

 Brazil; Mexico. 



