12 TIPULAR:LE. 



vulgaris Fitch. New York. Fitcli, First and Second Report, etc. 



p. 255 (Molobrus). 



Simulium Latr. 



calceatum Harris Cat. Ins. Mass. 



decorum Walk. Huds. Bay. Walker, List, etc. I, 112. 



invenusttim Walk. Huds. Bay. Walker, List, etc. I, 112. 



reptans Lin. Europe (aut.) ; Greenland (0. Fabr.). 0. Fabr. Fauna 



Grcenl. p. 211, 173 (Culex). 

 ventistum Say. Ohio. Say, J. Acad. Phil. Ill, 28. Wied. Auss. 



Zweifl. I, 71, 1. 

 vittatum Zett. Greenland. Zetterstedt, Ins. Lapponica. Staeger, 



Gnjenl. Antliater. 



IScatopse Geoffr. 



atrata Say. Philadelphia. Say, Long's Exp. App. p. 367. Wied. 



Auss. Zweifl. I, 71, 1. 



niteiis Walk. Huds. Bay. Walker, List, etc. I, 114. 



nitida Harris. Cat. Ins. Mass. 



obscura Walk. Huds. Bay. Walker, List, etc. I, 114. 



pusilla Walk. Huds. Bay. Walker, List, etc. I, 114. 



Artliria Kirby. 



analis Kirby. Huds. Bay. Kirby, N. Amer. Zool. Ins. 311, 1. 



Walker, List, etc. I, 115. 



Penlfaetria Meig. 

 atra Macq. Philadelphia (Macq.) ; N. Scotia; Huds. Bay (Walk.). 



Macquart, Hist. Nat. Dipt. I, 175, 2. Dipt. Exot. 1, 1, 85, 1. Mem. 



de Lille, 1838, 2e part. p. 89, tab. xii, fig. 3 (Eupeitenus ater). 



Walker, List, etc. I, 115. 



heros Say. Mexico. Say, J. Acad. Phil. VI, 154. 



lugubris Harris. Cat. Ins. Mass. 



Plecia Hoffmansegg. 



bimaculata Walk. U. States. Walker, Dipt. Saund. V, 422. 



rufithorax Walk. Jamaica. Walker, List, etc. I, 116. 



Dilophus Meigen. , 



fraternus Harris. Cat. Ins. Mass. 



fulvicoxa Walk. Huds. Bay. Walker, List, etc. I, 117. 



orbatus Say. Penna. Say, J. Acad. Phil. Ill, 77, 5 (Bibio). Wied. 



Auss. Zw. I, 77, 6. 



serraticollis Walk. Huds. Bay. Walker, List, etc. I, 117. 



spinipes Say. Missouri. Say, J. Acad. Phil. Ill, 79, 2. Wied. Auss. 



Zweifl. I, 75, 1. 

 stigmaterus Say. Missouri. Say, J. Acad. Phil. Ill, 78, 1. Wied. 



Auss. Zweifl. I, 76, 4. ' 



