62 



DIPTEEA. 



Hab. Mexico, Acaguizotla 3500 feet, Chilpancingo 4600 feet, Amula 6000 feet, Eio 

 Papagaio 1200 feet, Rincon 2800 feet, Tierra Colorada 2000 feet, Tepetlapa 3000. feet, 

 Dos Arroyos 1000 feet, all in Guerrero, Atoyac in Vera Cruz, Teapa and Frontera in 

 Tabasco (H. H. Smith), Orizaba (H. H. Smith and F. J). Godman), Temax in Northern 

 Yucatan (Gaumer). — South Ameeica, Colombia 3 , Brazil 3 5 , Bahia 1 2 , Rio Janeiro 6 , 

 Monte Video 1 2 , Argentine Republic 4 . 



Ninety-six specimens, agreeing exactly with Brazilian ones. 



11. Eristalis albifrons. 



Eristalis albifrons, Wiedem. Aussereur. zweifl. Ins. ii. p. 189 1 ; Roder, Stett. ent. Zeit. 1885, 



p. 341 2 ; Willist. Trans. Am. Ent. Soc. xv. p. 283*. 

 Eristalis albiceps, Macq. Dipt. Exot. ii. 2, p. 56 4 ; Willist. Synopsis N.-Am. Syrphidae, p. 172 

 Eristalis seniculus, Loew, Centur. vi. no. 63, in Berl. ent. Zeitschr. 1865, p. 168 6 . 



Hab. United States, Carolina 4 , Florida 5 . — Mexico, Frontera in Tabasco (H. H. 

 Smith). — South America, Brazil 1 3 ; West Indies, Cuba 6 , Porto Rico 2 , San Domingo 5 . 



Fourteen male and two female specimens, agreeing well with others from South 

 America. The female differs markedly from the male in having a prescutellar ashy 

 band.> 



12. Eristalis tricolor. 



Eristalis tricolor, Jaennicke, Neue exot. Dipt., in Abh. Senck. Ges. vi. p. 400 \ 



Hab. Mexico \ Amula 6000 feet, Eincon 2800 feet, Chilpancingo 4600 feet, Acagui- 

 zotla 3500 feet, all in Guerrero, Teapa in Tabasco (H. H. Smith), Atoyac in Vera Cruz 

 (Schumann), Orizaba (H. H. Smith and F. J). Godman), Temax in Northern Yucatan 

 (Gaumer). 



Forty specimens. 



A striking, easily recognized species. 



13. Eristalis fasciatus. 



Eristalis fasciatus, Wiedem. Zool. Mag. Kiel, i. 3, p. 51 x ; Aussereur. zweifl. Ins. ii. p. 173 2 ; 



Macq. Dipt. Exot. ii. 2, p. 57 8 j Rondani, Studi Ent. p. 68 *, 

 Eristalis jjodagra, Macq. Dipt. Exot. ii. 2, p. 38 5 ; Willist. Trans. Am. Ent. Soc. xv. p. 281 B . 

 Erisialis bifasciatus, Macq. Dipt. Exot. 5 e Suppl. p. 87 T . 



Hab. Mexico, Teapa in Tabasco (H. H. Smith) ; Guatemala, Paraiso (Champion) — 

 South America 3 , Brazil 1 2 4 s 6 7< 



Fifteen specimens, agreeing exactly with others from Brazil. The grey clouds in the 

 marginal and submarginal cells may be wanting, and the third joint of the antennee is 

 usually dark reddish-brown. 



