Horn fly was parasitized by Muscidifurax raptor, M. zaraptor, 

 Eupteromalus viridescens, Spalangia drosophilae, S. subpunctata, 

 and S. e. erythromera. Spalangia spp. was credited with para- 

 sitizing up to 40 percent of horn fly pupae in traps, and Mus- 

 cidifurax spp. up to 30 percent. 



270. Peris, S. V. 1951. Los Stomoxydinae de la Peninsula Iberica 



(Dipt., Muscidae). Rev. Acad. Cienc. Exactas Fis-Quim. Nat. 

 Zaragoza 6: 41-49. 



Discussed the classification of Spanish stomoxyine flies. 



271. 1960. Notas Dipterologicas. Graellsia 18: 59-63. 



Discussed stomoxyine flies found in Spain. 



272. Peterson, A. 1960. Larvae of insects. Part II. Ann Arbor, pp. 



D27, 260, 316. 



Identification of horn fly larvae is presented. 



273. Pickens, L. G., and R. W. Miller. 1975. Growth-regulating 



chemicals tested against nontarget insect fauna in bovine fecal 

 pats. Environ. Entomol. 4(1): 46. 



274. Pont, A. C. 1970. The type material of Oriental and Austral- 



asian Muscidae (Diptera) in the Zoological Museum, Amster- 

 dam. Beaufortia 18(231): 86. 



H. i. exigua lectotype, paralectotype, and seven syntypes were 

 present in the collection. 



275. 1973a. Muscidae (house-flies, stable-flies etc.). In 



Smith, G. V. (ed.). Insects and Other Arthropods of Medical 

 Importance. Brit. Museum (Nat. Hist.) London, pp. 251-269. 

 489. 



276. 1973b. Studies on Australian Muscidae (Diptera). IV. A 



revision of the subfamilies Muscinae and Stomoxyinae. Aust. 

 J. Zool. Suppl. Ser. 21: 129-296. 



H. exigua was regarded as a subspecies of H. irritans in accor- 

 dance with Zumpt (1973). 



277. Popham, W. L., and D. G. Hall. 1958. Insect iradication pro- 



grams. Annu. Rev. Entomol. 3: 336. 



278. Povolny, D. 1959. Gesichtpunkte der klassiflkation von syn- 



anthropen fliegen. Z. Angew. Zool. 46: 324-328. 



279. Rack, G. 1975. Two new species of the genus Pediculaster from 



Australian Diptera. (In German.) Acarologia (Paris) 16(3): 

 500-505. 



P. domrowi sp. n. and P. morelliae sp. n. were found attached 

 at the halteres, thorax, and abdomen of H. i. exigua and Morel- 

 lia hortensia. 



280. Railliet, A. 1886. Elements de Zoologie Medical et Agricole. 



Paris, p. 548. 



28 



