An equation was formulated to predict field developmental 

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368. 1958. A catalogue of the parasites and predators of in- 

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369. Thomssen, E. G., and M. H. Doner. 1938. Fly control for live- 



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370. Torgersen, T. R. 1974. Host index to the second supplement of 



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371. Townsend, C. H. T. 1932. Note on Haematobia and Lyperosia. 



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372. 1937. Genera of Glossinidae to Muscidae. Manual of 



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374. Tynes, J. S., E. C. Burns, and C. E. Severence. 1970. Dust 



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375. Tze-teh, Fan. 1957. Notes on third stage larvae of synanthropic 



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Key presented for 31 species including Lyperosia ^Haema- 

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376. United States Department of Agriculture. 1952. Some im- 



portant insects. U. S. Dep. Agric, Yearb. 1952. Plate XXV. 



377. 1969. Horn flies on cattle, how to control them. Leaflet 



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378. 1971. Horn fly, Haematobia irritans. U.S. Dep. Agric, 



Coop. Econ. Insect Rep. 21: 26, 83, 127, 190, 212, 235, 239, 264, 

 296, 312, 326, 346, 362, 380, 399, 417, 436, 456, 476, 496, 515, 

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379. 1972. Horn fly, Haematobia irritans. U.S. Dep. Agric, 



Coop. Econ. Insect Rep. 22: 147, 167, 174, 175, 193, 215, 230, 

 244, 256, 271, 281, 308, 321, 336, 359, 389, 410, 428, 442, 464, 485, 

 504, 528, 545, 564, 581, 605, 623, 641, 663, 683, 697, 713, 725, 740, 

 753, 764. 



36 



