320 S. W. AVILLISTON. 



MEGASPIS. 



Macquart, Dipt. Exot. ii, 2, 47, 1842. 



ruficeps Macquart. Dipt. Exot. ii. 2, 51, 32 (Eristalis); Schiner, Novara Exped. 

 365. 



mEROMACRUS. 



Rondani, Esame d. var. sp. Ditt. Brasil, 70, 1848. 

 Ghiliani Rondani, Esame d. var. sp. etc. 71. — Brazil. 



PTEROPTIL.A. 



Loew, Centur. vi, 59, 1866 (for Plagiocera Macq., preoc.) 



circumdata Bigot. Ann. Soc. Ent. Fr. 1875, 471 {Sphixea). — Columbia. 



milesoides Bigot, Ann. Soc. Ent. Fr. 1880, 226 {Eristalis).— Bra,zi\. 



pratorum Fabricius, Syst. Ent. 765, 13 (Syrphus) ; Ent. Syst. iv, 286, 31 id. i ; Syst. 



Antl. 236, 18 {Eristalis) ; Wiedemann, Auss. Zw. Ins. ii, 166, 20 {id.).— West 



Indies, S. America, 

 simplex Schiner, Novara Exped. 365 {Plagiocera). — Bi-azil. 



DOLrlOSYRPHlTS. 



Bigot, Bull. Soc. Ent. de Fr. 1882, No. 13. 



geniculatus Bigot, Ann. Soc. Ent. Fr. 1884, 343. — Buenos Aires. 

 See also Eristalis. 



MAL,L.OTA. 



Meigen, Syst. Beschr. iii, 377. 1822. 



analis Macquart, Dipt. Exot. 1 Suppl. 132, 3. pi. xi, fig. 8 ( Imatisma) . — New 

 G ranada. 



Colombii Macquart, Dipt. Exot. 4e Suppl. 141, 1, pi. xiii, fig. 3; Schiner, Novara 

 Exped. .360. — Columbia. [This appears to be the same as the preceding.] 



xylotaeformis Schiner, Novara Exped. 360. — Chili. 



1 magnifica Bigot, Ann. Soc. Ent. Fr. 1880, 85 (Plagiocera) ; ibid. 1883, 225 {Leiops). 

 — Columbia. [The genus Leiops cannot be separated from Mallota by the 

 bareness of the eyes. M. magnifica certainly must have the facies of a Pter- 

 optila, where the author first located it. It can hardly remain in Mallota.] 



DOL.ICHOGYIVA. 



Macquart, Dipt. Exot. ii, 2, 66, 1842. 



fasciata Macquart, Dipt. Exot. ii, 66, 1, pi. xii, fig. 1 ; Blanchard, in Gay's Hist. 



Fis. y Pol. de Chile, vii, 408, pi. iv, fig. 8 ; Philippi; Verb. Zool. Bot. Gesellsch. 



XV, 744 ; V. d. Wulp, Notes from the Leyden Museum, iv, 80, 11 ; Tijdschr. 



V. Entom. xxv, 133.— Chili. 

 Helophilus chilensis Walker, Linn. Trans, xvii, 344, 35. [Walker, List, iii, 606.J 

 nigripes Bigot, Ann. Soc. Ent. Fr. 1884, .346.— Chili. 



