NORTH AMERICAN DIPTERA. 311 



MEL,ANOSTOMA. 



Schiner, Wien. Ent. Mouatschr. iv, 213, 1860. 



euceratum Bigot, Ann. Soc. Ent. Fr. 1884, 82. — Bogota. 



fenestratum Macquart, Dipt. Exot. ii, 2, 103, 27, pi. xvii, fig. 6 {ffyrphus) ; Blau- 

 chard, Hi.st. fis. y pol. de Chile, vii, 413 (id.) ; Philippi, Verb. Zool. Bot. 

 Gesellsch. xv, 746 (id.) ; Schiner, Novara Exped. 351.— Chili. [Closely allied, 

 api)ai-eutly, to M. tigrinnmO. S. and M. obscurum Say, all characterized by the 

 ripple-like pollinose markings of the face, and the presence of bristles on 

 the outer side of the middle tibi£e.] 



mellinum Meigen, Schiuer, Williston, etc. — N. and S. America, Europe. 

 Syrphus melUturgus Meigen ; Macquart, Dipt. Exot. 4e Suppl. 152. 

 See also Syrphus. 



CATABOMBA. 



Osten Sacken, Western Dii)t. 325, 1877. 



melanostoma Macquart, Dipt. Exot. ii, 2, 87, 2 {Syrphus) ; Blanchard, Hist. fis. y 

 pol. de Chile, vii, 410, 3 (id.); v. d. Wulp, Tijdschr. v. Ent. xxv, 134.— Chili. 

 Syrphn.s latafascies Macquart, Dipt. Exot. 4e Suppl. 152, 48. 

 pyrastri Linne, Meigen, Schiner, Williston, etc. ; Macquart, Dipt. Exot. ii, 2, 88 



(Syrphus). — Chili, N. America, Europe. 



SYRPHUS. 



Fabricius, System Entom. 1775. 



A.— Thoracic dorsum, witho^it yellow lateral markings, abdomen banded, face more 

 or less yellow ; Syrphus, senu strictiori. 

 aerugo sifrons Schiner, Novara Exped. 352. — S. America, 

 chalconotus Philippi, Verb. Zool. Bot. Gesellsch. xv, 747. — Chili, 

 decemmaculatus Eondani, Archivio por la Zool. iii, 12. — Chili, 

 gastrostactus Wiedemann, Auss. Zweifl. Ins. ii, 123, 11. — Brazil. 

 Gayi Macquart, Di])t. Exot. ii, 2, 90, 6, pi. xv, fig. 8 ; Blanchard, Hist. Fis. y 



Pol. de Chile, vii, 409.— Chili. 

 Syrphus testaceicoruis Macquart, Dipt. Exot. 4e Suppl. 153, 50, pi. xiv, fig. 12. 

 hortensis Philippi, Verb. Zool. Bot. Gesellsch. xv, 746, 11. — Chili, 

 interruptus Philippi, Verb. Zool. Bot. (lesellscb. xv, 747. — Chili. 

 Macquarti Blanchard, Hist. Fi.s. y Pol. de Chile, vii, 411,5; Schiner, Novara 



Exped. 353.— Chili, 

 pallipes Bigot, Ann. Soc. Ent. Fr. 1884, 93.— Chili. 

 phaBOStigma Wiedemann, Auss. Zweifl. Ins. ii, 130, 23. — Brazil, 

 poecilogaster Philippi, Verb. Zool. Bot. Gesellsch. xv, 746. — Chili, 

 sinuatineuris Macquart, Dipt. Exot. 4e Suppl. 151, 46, pi. xiv, fig. 10.— Brazil. 



[Didea f] 



B. — Thoracic dorsum ivith yellow lateral stripes or spots ; Mesograpta, etc. 

 calceolatus Macquart, Dipt. Exot. ii, 2, 91, 8, pi. xvi, fig. 1 ; Blanchard, Hist. 



Fis. y Pol. de Chile, vii, 411, 6 ; v. d. Wulp, Notes from the Leyden Museum, 



iv, 80, 12; Tijdschr. v. Ent. xxv, 136.— Chili, 

 columbianus Eondani, Arch. por. la Zool. iii, 11. ^Columbia. 



