— 28 — 



will soon publish. Such a general catalogue of the Diptera of the world. 

 prepared by so conscientious an authority as Baron Osten-Sacken, could 

 not help but be of the greatest service to all students of the order, if for 

 no other reason than that of the literature. Five of the species given be- 

 ll >w were ones omitted accidentally by me in the arrangement of the MSS. . 

 or by the printer; others were overlooked, or were in works to which 1 

 had no clews. I believe that the list, with these additions, is now es- 

 sentially complete. -Mr. V. v. Roeder informs me that Xylota icerulea 

 Rondani, is the same as Sterphas antenna/is Phil., which must thus give 

 place to the earlier name. 



ADDITIONS. 

 Microdon cyaneus Perty, Delectus, etc. — Brazil. 



fulgens Wiedemann, Auss. zw. Ins., ii, 82; Williston, Synopsis, 11 : 

 Macquart, Dipt. Exot, ier Suppl., 122. — N. and S. America. 

 Syrphus albitarsis, excavatus and albiventris Rondani, Dipt. Osculati. — S. America. 



octoguttatus Jaennicke, Neue Exot. Dipt., 90. — Chili. 



sitnilis Blanchard, in Gay's Hist. fis. y pol. de Chile, vii, 410; Philippi, 

 Verh. Zool.-Bot. Gesellsch., xv, 745. — Chili. 

 Phalacromyia ardua Wiedemann, Auss. zw. Ins., ii, 204 (Volucel/a) ; Rondani, 



Esame, etc., 5 (id.); Mik, Wien. Ent. Ztg. 1883, 284. — S. America. 

 Temnocera nietallorum and fulvolucus Walker, Dipt. Saund., 252. — Brazil. 

 Eristalis decor its l'erty, Delectus, etc. — Brazil. 



inversus Wiedemann, Auss. zw. Ins., ii, 161. — Surinam. 



fuscipennis Macquart, Dipt. Exot., ier Suppl., 128, pi. xi, fig. 5. — Surinam. 



pygniaus Macquart, Dipt. Exot., ii, 2, 54. — Surinam. 



J 'lines tens Rondani, Dipt. Osculati, 4. — Rio Negro. 

 Ilelophilus cliilensis (Walker?) Guerin, Iconogr., 545, pi. xcix, f. 2. — Chili. 



Also the four following from the Galapagos Islands should be in- 

 cluded in the South American fauna. 



Syrphus albomaculatus Smith, Proc. Zool. Soc, Lond., 1877, 84. 



agonis Walker, List, etc., iii, 588. 



splendens Thomson, Eugenies Resa, 501. 

 Baccha facialis Thomson, Eugenies Resa, 504. 



CORRECTIONS. 



Microdon conopsoides should be stricken out; it is Mixogaster conopsoides wrongly 



placed. 

 Microdon angustus Macq. Suppl. i, is not the same as J/, angustus Macq., Suppl. iii. 

 Pipiza aitrantipes Bigot is from Chili, not Brazil. 

 /'. lugubris Jaenn. should read 96, not 4. 

 For Vohicelln polorans read plorans. 

 Syrphus elegans should have been printed in italics and indented ; it is a synonym 



of distingtiendus. 

 Polichogyna nigripes Bigot, is 1883, not 1884. 

 Stilbosoma nigrinerTis. not nigricornis. 



