CATALOGUE OF NORTH AMERICAN DIPTERA. 503 



ACRONACANTHA. 



Van der Wulp, Biologia, Dipt., 11, 243, 1891. 



Brauer and Bergen stamm, Zweifl. d. Kaiserl. Mus., vi, 182, 1893. 

 nubilipennis Van der Wulp, Biologia, Dipt., ir, 243, pi. v, f. 12. — Costa Rica. 



DEXIOSOMA. 



Rondani, Dipt. Ital. Prod., i, 85, 1856. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. Mus., iv, 117, 1889; vi, 171, 



1893. 

 Van der Wulp, Biologia, Dipt., 11, 244, 1891. 

 fumipennis Bigot, see Ptilodcxia. 

 partitum Bigot, x-Vimales, 1888, 270. — ]\Iex. 



Van der Wulp, Biologia, Dipt., 11, 245, note on type. 

 Brauer, Sitzungsbericht d. K. Akad., cviii, 14, same ; suggests Pacliy- 

 graphia, a South American genus. 

 vibrissatum Van der Wulp, Biologia, Dipt., 11, 244, pi. v, f. 13. — Tabasco, Mex. 

 Giglio-Tos, Ditt. del JNIess., in, 63, note. — Tuxpango, ]Mex. 



MEGAPROSOPUS. 



Macquart, Dipt. Exot., 11, 3, 83, 1843. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. ]\Ius., iv, 117, 1889; vi, 171, 



1893- 

 michiganensis Townsend, see Microphtliahiia disjiincfa. 

 rufiventris Macquart, Dipt. Exot., 11, 3, 84, pi. x, f. i. — Mex. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. ]Mus., iv, 117; vi. 171. 



MACROMETOPA. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. Mus., iv, 117, 1889; v, 362, 

 1891 ; VI, 172, 1893. 



Van der Wulp, Biologia, Dipt., 11, 245, 1891. 

 calogaster Bigot, Annales, 1888, 266 (Microphthalma). — Mex. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. AIus., iv, 166 (Macrome- 

 topa mexicana) ; vi, 171 (id.). — Mex. 



Van der Wulp, Biologia, Dipt., 11, 245, pi. v, f. 14, desc. and syn. — Guer- 

 rero and Morelos, Mex. 



Brauer, Sitzungsbericht d. K. Akad., cviii, 10, confirms syn. and gen. 

 ref., from type. 



STENODEXIA. 



Van der Wulp, Biologia, Dipt., 11, 246, 1891. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. Mus., \', 379. 1891 ; vi. 133. 

 1893. 

 albicincta Van der Wulp, Biologia, Dipt., 11, 246, pi. v, f. 15. — Tabasco and N. 

 Yucatan, Mex. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. Mus., vi, 133. 



PTILODEXIA. 



Brauer and Bergenstamm, Zweifl. d. Kaiserl. Mus., iv, 119, 1889 {Ptilo- 

 dcxia and Clinoncura) ; v, 363, notes and sj^n., 1891 ; vi, 173, 1893. 

 ? argentina Bigot, Annales, 1888, 265 (Rhamphinina). — Argentina. 



Brauer, Sitzungsbericht d. K. Akad., cviii, 14; a species from Mexico in 

 the Imperial Museum is probably the same, compared with the type; 

 hence I list it with a question. 



