Figures 901-910. — Calycomyza stegmaieri : 901, Aedea- 
gus, side view; 902, distiphallus , ventral view; 
903, leaf mines on Calonyction aculeatum ; C. 
f lavinotum : 904, Aedeagus, side view; 905, 
distiphallus, ventral view; C . frickiana : 906, 
Aedeagus, side view (paratype, Illinois); 907, 
same, ventral view (paratype. South Dakota); 908, 
leaf mine on Rudbeckia laciniata (Maryland) ; C. 
mikaniae ; 909, Aedeagus, side view; 910, leaf mine 
on Mikania batatifolia. 
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