spicuously proclinate (fig. 975) 
Phytoliriomyza Hendel (p. 151) (in part) 
19 (18). Male genitalia with distal section of aedeagus 
simple (not bifid), lying below a lobe with sup- 
porting sclerites on dorsal side of aedeagus (figs. 
1258, 1262); outer crossvein lacking (present in 
a few species in Europe) Chromatomyia Hardy (p. 173) 
— Male genitalia wth distal section of aedeagus bifid, 
without such lobe above 20 
20 (19). Outer crossvein present (fig. 1059); frons always 
strongly projecting; 2d costal section short, 
always less than twice length of 4th 
Napomyza Westwood (p. 168) 
— ■ Outer crossvein normally absent; if present, frons 
not projecting; 2d costal section longer, 2.5 
times length of 4th (P. davisii , P. duplex ) 
Phytomyza Fallen (p. 172) 
17 
