December, '13] BRUES: STOMOXYS DISTRIBUTION 463 



fly is very commou in southern California where it is a serious pest to 

 cattle, and Professor Doane writes that he has found the larvae breed- 

 ing very commonly in cow manure around dairy barns in the vicinity 

 of Stanford University. Herms ^ mentions it as a household insect 

 in California. 



Colorado. — ^Bishopp ^ quotes from Prof. Gillette the statement that 

 this species is possibly the^worst pest of livestock in Colorado on 

 account of its being so abundant and ever present. 



Professor Cockerell writes that it is abundant at Boulder, Colo, 

 and that one of his students, Mr. Tucker, found it at Tabernash. 



District of Columbia. — Howard ^ who has studied this insect rather 

 extensively in Washington, D. C, refers to its abundance there in 

 late summer. 



Connecticut. — The stable fly is widely distributed throughout 

 Connecticut, apparently in about the same abundance as has been 

 observed in Massachusetts. The writer has seen it especialty abun- 

 dant along the Connecticut Valley in late summer. 



Florida. — The writer has seen the stable fly in the northeastern part 

 of Florida, but it does not appear to be nearly so common there as in 

 the northern states. Johnson "* records it from St. Augustine and 

 Lake Worth, and Bishopp ^ states that investigations made in Central 

 Florida indicate that it is seldom of importance as a pest in that 

 section. 



Georgia. — According to Bishopp ^ the stable fly is a pest of more or 

 less importance in the grain belt of this state every year. 



Mr. C. W. Johnson also informs me that he has specimens in his 

 collection, collected b}' Pilate at Tifton, Ga. 



Illinois. — The stable fly is abundant about Chicago and many parts 

 of northern Illinois, according to the experience of the writer. 



Prof. A. D. MacGillivray, in a letter, has offered the following note 

 concerning its occurrence in the northern central portion of the state 

 near Urbana: "In the two years that I have been here, this insect 

 has been quite abundant. The flies come into the laboratory and 

 bite us on the shins so as to almost drive us out in the afternoons. 

 Last September there was a great reduction in the amount of milk 

 produced in this region, and the dairies all reported a great abundance 

 of flies, which of course meant the stable fly." 



I Bull. Agric. Expt. Sta., California, No. 215, p. 517 (1911). 



= Joum. Econ. Entom., Vol. 6, p. 115 (1913). 



3 Proc. Washington Acad. Sci., II, p. 578-579 (1900). 



* Proc. Acad. Nat. Sci., Philadelphia, p. 335 (1895.) 



6 Joum. Econ. Entom., Vol. 6, p. 115 (1913). 



6 Joum. Econ. Entom., Vol. 6, p. 115 (1913). 



