256 Annals Entomological Society of America [Vol. VI, 



It may be stated that Mr. W. R. Thompson and the late 

 Mr. D. W. Coquillett examined independently the above 

 material and both gentlemen substantially confirmed the 

 above synonymy. Before leaving the subject of synonymy 

 the opportunity may be taken of making a few remarks on 

 some species listed in Aldrich's catalogue of North American 

 Diptera. As regards Lucilia sylphida, Bigot, a copy of the 

 original description (Ann. Soc. Ent. de France 1877, p. 45,) 

 which was furnished the writer through the courtesy of Prof. 

 J. M. Aldrich, is as follows: 



"17. S. Sylphida female (nov. sp?). 

 Viridi metallico. (Abdomen?) Antenn. segmento 3.0 secundo quad- 

 ruple longiore. Alis, vena 4a usque ad apicem primas spinosa. Cicatrice 

 subhumerali nigra. Facie, basi tantum, duobus macrochaetis munita. 

 Antennis palpisque pallide testaceis. Fronte grisea, occipite utrinque, 

 obscure asnescente, vitta nigra apice fulva, facie albida, genis palli- 

 dissime testaceis; calyptris albis; alis hyalinis basi, pallidissime tes- 

 taceus; pedibus, fusco-nigra, femoribus, extrinsecus, parum asneis. 

 (L'abdomen manquant, est cl bien une espece nouvelle?) " 



In this brief description mention is made of none but generic 

 characters and these in a most general way. The form is 

 probably not a distinct species, but this can only be ascertained 

 by an examination of the type. As to some of the other species: 



Lucilia mollis. Walk. 

 Hough refers doubtfully to Phormia regina. 



Lucilia rufipalpis, Jaen. 

 Hough refers to Phormia regina. 



Lucilia nobilis, Meig. 

 Mr. Austen, of the British Museum , writes that this form 

 is now generally considered to be synonymous with L. sericata. 



Lucilia sylphida, Big. 

 Probably not a distinct form. 



Lucilia terr^-novae, Des. 

 Hough refers to Phormia. 



