SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 125, NO. 1, PL. 29 



Cercus and anal lobe, genital fork, and ovipositor of females: 136-138, Siiuitliuni 

 ( Eusimnlinm ) aureum; 139-141, Simulium (Byssodon) benjamini; 142-144, Simulium 

 (Lanea) callidum; 145-147, 6". (L.) cohnni; 148-150, S. (L.) doumsi; 151-153, S. (L.) 

 dugesi. 



