Synopsis, Frons black, not projecting above eye; 
gena 0.25 height of eye at rear; 3d antennal seg- 
ment (fig. 414) largely black but paler, brownish 
on inside; mesonotum brilliantly shining black; 
wing length in male 2.4 mm; male genitalia with 
aedeagus having distal tubules narrow with dis- 
tinctive constriction near apex (figs. 415, 416). 
Host/Early Stages. Unconfirmed but certainly 
Poaceae. 
Distribution. Kansas. 
Reference. Part 2, p. 265. 
30 (29). 3d antennal segment largely brown A. parvicornis Loew 
Synopsis. Frons brown or brownish black, broad, 
almost twice width of eye, distinctly projecting 
above eye anteriorly; 2 strong reclinate ors, 2 
weaker incurved ori; gena extended at rear, 0.33 
height of eye; 3d antennal segment round, vir- 
tually bare, pale brown; mesonotum shining black, 
with 4 or 5 dc greatly decreasing in size; legs 
black, foreknee paler, all tarsi distinctly brown- 
ish; wing base, squama, and fringe yellowish 
white; wing length 2.5-3 mm; male genitalia with 
aedeagus short, broad, distiphallus uniformly 
rounded (figs. 417, 418); surstylus (fig. 419) 
with group of 12-15 short, stout bristles. 
Host/Early Stages. Echinochloa crusgalli, Panicum 
miliaceum , Zea mays , probably other cultivated 
cereals and wild grasses. Larva forms linear 
blotch mine running down leaf; as many as 4 
generations have been confirmed; puparium reddish 
brown, with posterior spiracles on small subsidi- 
ary projection arising from large protuberance, 2 
processes slightly separated, each with 3 bulbs 
(fig. 420). 
Distribution. Widespread, present in most States 
(Frick, 1959); Canada. 
References. Phillips, 1914 (biology); Frick, 1959: 
357; Spencer, 1969a: 51; 1973a: 252 (economic 
importance) . 
3d antennal segment largely black A. proxima Spencer 
Synopsis. Closely resembling A. parvicornis but 
3d antennal segment and frons generally darker; 
wing length 2. 4-2. 7 mm; male genitalia with aedea- 
gus (figs. 421, 422) having distal tubules narrow 
and relatively long (contrast A. parvicornis, 
figs. 417, 418). 
Host/Early Stages. Echinochloa walteri , Panicum 
dichotomif lorum , almost certainly other grasses. 
Puparium reddish brown, posterior spiracles close- 
ly adjoining on conspicuous protuberance, each 
with 3 bulbs (fig. 423). 
Distribution. Florida, New York; Canada. 
References. Spencer, 1969a: 53; Spencer and 
Stegmaier, 1973: 19. 
31 (19). Gena broad, 0.25 height of eye 32 
67 
