Host/Early Stages. Unknown, possibly in 
Boraginaceae . 
Distribution. Utah. 
Reference. Part 2, p. 263. 
26 (23). 3d antennal segment distinctly pubescent 27 
3d antennal segment bare or with normal pubescence— 29 
27 (26). 3d antennal segment normally black 28 
3d antennal segment paler, brownish A. tacita Spencer 
Synopsis. Frons narrow, less than 1.5 times width 
of eye, not projecting above eye; gena narrow, 
slightly extended at rear, 0.125 height of eye; 
3d antennal segment large, round, with conspicu- 
ous pubescence (fig. 403); mesonotum shining 
black, with 3 dc; wing length 2.5 mm, veins pale; 
male genitalia with aedeagus as in figures 404, 
405; epandrium with 3 short, stout bristles in 
center, none at either corner (fig. 406). 
Host/Early Stages. Poaceae, but species unrecord- 
ed. Puparium reddish brown, posterior spiracles 
adjoining, each with 3 bulbs (fig. 407). 
Distribution. Montana (new record); Canada. 
References. Spencer, 1969a: 59; part 2, p. 268. 
28 (27). Small species, wing length 2. 3-2. 6 mm 
A. bispinata Spencer 
Synopsis. Frons black, 1.5 times width of eye, not 
projecting above eye in profile; 2 ors, 2 ori; 
gena extended at rear, up to 0.33 height of eye; 
3d antennal segment round, rather large, black, 
with distinct fringe of pubescence; mesonotum 
shining black, with 3 dc , 3d small; legs with fe- 
mora black, tibiae and tarsi paler, brownish; 
squama and fringe white; male genitalia with ae- 
deagus as in figures 408, 409; epandrium with 2 
strong bristles (fig. 410). 
Host/Early Stages. Certainly Poaceae but uncon- 
firmed. 
Distribution. New records: Georgia, Maryland, New 
York, North Carolina, Utah, Virginia; Canada. 
References. Spencer, 1969a: 39; part 2, p. 263. 
Larger species, wing length 2. 7-3.2 mm 
7 7 A. hockingi Spencer 
Synopsis. Agreeing closely with A. bispinata but 
slightly larger; squama pale or (in Canada) some- 
what darker; male genitalia with aedeagus as in 
figures 411, 412; epandrium with row of bristles, 
normally 4, internal ones shorter (fig. 413). 
Host/Early Stages. Certainly Poaceae but uncon- 
firmed. 
Distribution. Colorado; new records: Texas, Utah; 
widespread in Canada. 
References. Spencer, 1969a: 44; part 2, p. 264. 
29 (28). 3d antennal segment rounded, slightly longer than 
broad — — 
3d antennal segment rounded below, almost angu- 
late at upper corner (fig. 414) 
A. pagana Spencer , n. sp. 
66 
