Figures 4-16. — Subcostae of subfamilies Agromyzinae 
(4) and Phytomyzinae (5). Larval cephalopharyngeal 
skeletons in subfamilies Agromyzinae (6) and 
Phytomyzinae (7). Melanagromyza trispinosa : 8, 
Aedeagus, side view; 9, same, ventral view; M. 
tamia : 10, Aedeagus, side view; M. quadrisetosa : 
11, Aedeagus, side view; 12, same, ventral view; M. 
trispinella : 13, Aedeagus, side view; 14, same, 
ventral view; M. setifrons : 15, Aedeagus, side view 
(holotype); 16, same, ventral view (Canada). 
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