NOTES. 237 



versa. In the Spec. Insect., as if becoming aware of his error, he 

 correctly quotes System. Ent. 75(3, 1 (which in B. iUncens) as a syno- 

 nym of his B. filntits. Wiedemann, in Nonotjr. Midnr., and Westwood, 

 Arcana, quote correctly B. illucms, System. Ent. 756, 1; Gerstaecker 

 erroneously B. fiJatus, System. Ent. 757, 2 (which is Hernictin illiict'H*). 



141. Nemestrinidae. Dr. Loew (Dipternf Siidafr. p. 245) proposes 

 to call this family Hinuoi iuimlae; Dr. Schiner (Novara, p. 105) oppo- 

 ses the change. 



142. Hirmoneura clausa. Since describing this species, I have 

 seen several specimens of a Nim/oiinmt brought by Mr. Morrison from 

 Colorado. It has the second posterior cell open. 



143. Bombylidae. In my West-mi- Dipt era, p. 225, I have given 

 a synopsis of all the genera of this tamily hitherto found in the United 

 States; and also, in the larger genera, a review of all the species, 

 which may facilitate determination 



144. Anthrax californiae. I could not find the original specimen 

 in the Brit. Mus. 



145. Exoprosopa philadelpMca. This seems to he a small variety 

 of E. fascipeitms; I have met with such specimens several times. 



146. Exoprosopa rubiginosa. Probably a denuded E. fasciata ; 

 anyhow a wretched description; the name be better dropped. (1 have 

 seen the type since writing this note and confirm my statement.) 



147. Exoprosopa eremita. Is not this species only a variety of 

 E. pueblensis? 



J48. Exoprosopa ignifer. Walker contradicts himself about this 

 species; in the Dipt. JSaund. p. 166 he places it among the species 

 with two submarginal cells; later, he puts it in Wiedemann's Division 

 I, the species of which have three such cells. 



149. Exoprosopa trimaculata Walk. Same remark as in the 

 preceding note. 



150. Anthrax. A number of Macqnart's species in this genus, 

 especially of those with hyaline wings, will have to be cancelled, as the 

 descriptions are absolutely unmeaning and evidently based on miserable, 

 rubbed off specimens. Such are: A. coniuxa, albipectm, gracilis. 



Of Anthrax liypomdas and J><.(-*tardii I have seen the types. 



151. Anthrax halcyon. Macquart's specimen is from Carolina and 

 may perhaps, belong to A. Ccyx Loew? 



152. HemipiEthes seminigra. I suspect that this species is the 

 same as H. wor/Wr/ (Say). Compare 0. Sacken, Western Dipt, p. 241. 



153. Argyramoeba georgica. This synonymy is admissible on the 

 supposition only that Macquart had a female before him, and not a male, 

 as he states. The figure of the wing seems convincing.. I do not quote 

 A. analiK (Say) Macquart, Dipt. Exot. II, 1, p. 67, 32, because I suspect 

 that it is some other species. 



154. Argyramoeba fur 0. S. has the greatest resemblance to 

 A. Unotata Meigen, of Southern Europe (Fiume and Portugal). 



155. Stygia elongata Say, Lonwtia vlonaata Wied., is not a 

 Lomatia as Wiedemann himself observes, but it is difficult to suy, 



