SIPHON APTERA AND DIPTERA 381 



Auten (1934), Noack (1901), Schaefer (1938). Phytophaga destructor; Metcalfe 

 (1935). Rhabdophaga saliciperda; Sen (1939). Sciara coprophila; Butt (1934), 

 DuBois (1932), Metz (1938), Schmuck and Metz (1932). Simulium sp.; Graber 

 (18886), Melnikoff (1869), Metschnikoff (18666). *S. canescens; Kolliker (1843). S. 

 pictipes; Gambrell (1933). Stenopteryx hirundinis; Hardenburg (1929). Tanypus; 

 Hasper (1911), Robin (1862). Tanytarsus boiemicus; Johannsen (1937), Zavrel 

 (1926). T. dissimilis; Johannsen (1910, 1911, 1937). T. grimmi; Schneider (1885). 



