448 THE ANIMAL PARASITES OF MAN 



Two wings are present in the true Hippoboscas, Hippobosca equina (of the 

 horse), H. camelina (of the camel), H. maculata (of oxen), and H. canis (of 

 dogs), or absent in Melophagus, the Sheep Tick or Ked Fly (M. ovinus). 



In one genus, Lipotena, wings are at first present, but are lost as soon as 

 the fly finds its permanent host. 



As recently suggested, these parasites may have some connection with the 

 spread of Trypanosomiasis (vide Journal of Pathology, 1904, Theiler). F. V. T.] 



The following is the most important literature on Diptera in general : Meigen, 

 J. W., Syst. Besch. d. bek. eurc.p. zweiflugligen insecten., 7 vols., Hamm., 1818-1838; 

 Brauer, F., Monographie dev (Estriden, Wien., 1863 ; " Idem, Nachtr. hierr.u " (Wien. 

 entom. Ztg., 1887, vi., pp. 4, 71); Schiner, J. R., Fauna austriaca, die Fliegen., 

 Wien., 1860-64; Low, Fr., " Ueber Myiasis und ihre Erzeuzer" (Wien. med. Wchnsr.hr., 

 1882, xxii., p. 247; 1883, xxxiii., p. 972; Joseph, G., " Ueb. Fliegen als Schddlinge 

 und Parasiten des Menschen" (Dtsch. med. Ztg., 1885, i., p. 37; 1887, iii., pp. 713 

 and 725); Peiper, E., Fliegenlarven als gelegentl. Paras, d. Mensch., Berlin, 1900; 

 Theobald, F. V.. "Monograph of the Culicidaeof the World," 3 vols, and i atlas, plates, 

 1901-1903; Austen, E., "A Monograph of Glossina Tsetse Flies," i vol., 1903. The 

 full special literature will be found in Peiper as well as in Huber's Bibliographic d. 

 klin. Entomol., 1899, vol. 3, Jena. 



