December, '13] BRUES: STOMOXYS DISTRIBUTION 469 



known island, informs me that he has commonly noticed stable flies 

 biting his horse in various parts of Hayti. 



St. Vincent. — Williston^ has included Sto^noxys caldtrans in his 

 Diptera of St. Vincent. 



Grenada. — The writer has seen the stable fly in Grenada, but at 

 least during August and September it is not so numerous as to be a 

 noticeable pest to domestic animals. 



Mexico. — Van der Wulp' cites Tabasco, Orizaba and Mexico City 

 as localities and Mr. W. M. Mann has recently observed it in the 

 State of Hidalgo at an altitude of 9000 feet. 



Costa Rica. — Van der Wulp^ has recorded Stomoxys caldtrans from 

 two localities,'Cache and Rio Sucio. 



Central America 



Panama. — The writer has observed the stable fly in the Canal Zone 

 during May, but in very small numbers. It does not appear to be an 

 abundant insect in Panama. 



South America 



Colombia. — This species occurs at least in the coastal region of 

 Colombia, near Buenaventura, where I have seen it, although in very 

 small numbers. 



Ecuador. — In the city of Guayaquil, Ecuador, and in its environs 

 the stable fly was to be found occasionally during May and June, at 

 the onset of the dry season, but not in noticeable numbers. Most of 

 the specimens which I collected there are much smaller than those 

 from more temperate regions. 



Peru. — Prof. C. H. T. Townsend, an eminent authority on Muscoid 

 flies, who has resided in Peru for a number of years, has been so good 

 as to furnish information concerning the occurrence of the stable fly 

 in that country. He writes: "I can say that Stomoxys caldtrans 

 occurs throughout Peru below certain altitudes, which I would esti- 

 mate at six or eight thousand feet and perhaps higher. It occurs 

 throughout the coast region and I have universally noted it as very 

 troublesome to my mules on trips in the montanya on the eastern 

 side of the Andes, below six or seven thousand feet. ... I have 

 little doubt that it is distributed all over South America wherever 

 suitable breeding conditions exist. 



1 Trans. Ent. Soc. London, 1896, p. 366. 



2 Biol. Cent. Amer. Dipt., vol. 2, p. 292 (1896). 

 2 Biol. Cent. Amer. Dipt., Vol. 2, p. 292 (1896). 



