figures 376, 377; distiphallus broad in side view; 
surstylus essentially as in A. utahensis (fig. 
366). 
Host/Early Stages. Unconfirmed, probably Bromus . 
Larva forming long blotch mine; puparium reddish 
orange, 3.2 mm long, posterior spiracles on short 
stalks, widely separated, each with 3 bulbs. 
Distribution. California; new records: (?) 
Arkansas, Colorado, Tennessee, Utah. 
References. Malloch, 1913a: 285; Spencer, 1969a: 
45; 1981: 115; part 2, p. 264. 
Smaller species, wing length up to 3.1 mm in fe- 
male 16 
16 (15). Mesonotum entirely matt A. schlingerella Spencer 
Synopsis. Wing length in male 2.5 mm; frons 
distinctly projecting above eye; gena 0.33 height 
of eye; frons and all antennal segments black; 3 
strong dc, 2 smaller anterior ones; squama and 
fringe pale, whitish; male genitalia with aedeagus 
as in figures 378, 379. 
Host/Early Stages. Unconfirmed, certainly Poaceae. 
Distribution. California. 
Reference. Spencer, 1981: 128. 
— Mesonotum shining black 17 
17 (16). Last section of vein M 3+4 distinctly shorter than 
penultimate A. nigrella (Rondani) 
Synopsis. Frons matt black or dark brown, dis- 
tinctly projecting above eye in profile; gena 
extended at rear, 0.33 height of eye; all antennal 
segments black, 3d slightly longer than broad, 
rounded at end (fig. 380); arista moderately pu- 
bescent; mesonotum shining black, with up to 5 
differentiated postsutural dc, greatly decreasing 
in size, sometimes 1 or 2 presutural dc ; wing 
(fig. 381) length from 2.5 mm in male to 3.1 mm in 
female; legs entirely black; squama whitish, 
fringe white to ochreous; male genitalia with 
aedeagus (figs. 382, 383) having paired distal 
tubules elongate, distiphallus relatively short in 
side view (contrast A. kincaidi , fig. 376). 
Host/Early Stages. Poaceae, but no hosts recorded 
in America; in Europe, larva feeding on Avena , 
Dactylis , Festuca , Glyceria , Holcus , Hordeum , 
Lolium , Phleum , Poa, Secale , Setaria, Trisetum , 
Triticum . Leaf mine starts as narrow channel run- 
ning toward apex of leaf but later develops into 
broad blotch running downward, with frass largely 
diffused, giving mine greenish appearance; pupari- 
um reddish brown, spiracular processes widely 
separated, each with 3 bulbs (fig. 384); pupation 
takes place externally. 
Distribution. California, New Mexico; widespread 
in Europe . 
References. Spencer, 1981: 117; part 2, p. 265, 
Last and penultimate sections of vein M' 3+4 approx, 
equal A. aprilina Malloch 
62 
