Plate V. 



ANATOMICAL DETAILS OF SIMULIIDJ^. 



Fig. 1. — Femora, tibia*, and basal two joints of tarsus of bind leg of Simulium 

 vcnustum, male. 

 2. — Same of Sitini1iii»i ritidfion, male. 

 3.— Same of ISiiiniliiiin rinjutuin, female. 

 4. — Same of tUmulium rirgiitiiin. male. 

 5. — Apex of first and wbole of second joint of bind tarsus of SimuUum 



rirfftituin from posterior side. 

 G. — Side elevation of scutum of Siiiiiiliuiii iiotatiini, female. 

 7. — Same of SiiHulium bivittatuin, female. 

 8. — Same of Simiiliiim ochraccxim, female. 

 9. — Faii)us of ^iiiudiiim piscichliinn, female. 

 10. — Last tbree tarsal joints in SiinuUiim. 

 11. — Fore tarsus of Siittnliiim parnassnni, female. 

 12. — Tarsal claw of Siiiniliinii jciiitiiigsi. male. (Original.) 



80 



