Distribution. California (San Bernardino Mts.). 
Reference. Spencer, 1981: 159. 
Legs black with yellowish knees 
A. ( Cephalomyza ) know It on i Spencer, n. sp. 
Synopsis. Frons, gena, face, palpus, and all an- 
tennal segments yellowish orange; 4 slender orbi- 
tal bristles; mesonotum and scutellum matt gray, 
3 strong postsutural dc, presutural weak; legs 
black but all femora with faintly yellowish 
knees; squama and fringe yellowish; wing length 
in male 2.1 mm, discal cell large, last section of 
M 3+4 about 1.5 times length of penultimate; male 
genitalia with aedeagus as in figures 522, 523. 
Host /Early Stages. Unknown. 
Distribution. Utah. 
References. Spencer, 1981: 160 (as sp., Utah); part 
2, p. 275. 
17 (13). 3d antennal segment largely black 18 
3d antennal segment pale, yellow or orange 20 
18 (17). Mesonotum shining black 
‘ A. ( Cephalomyza ) remus Spencer 
Synopsis. Frons, orbit, gena, and fringe yellow; 
frons greatly projecting above eye; 1 ors, 4 in- 
clined ori; gena extended at rear, 0.5 height of 
eye; 3d antennal segment small, entirely black; 
palpus black; 3 postsutural dc, presutural scarce- 
ly differentiated from acr, these in 4 rows; scu- 
tellum, pleura, and legs entirely black; squama 
white, margin and fringe scarcely darker; halter 
whitish yellow; wing length from 1.7 mm in male 
to 2.3 mm in female, last section of M 3+4 1.5 
times length of penultimate; male genitalia with 
aedeagus as in figures 524, 525. 
Host/Early Stages. Unknown. 
Distribution. California (San Bernardino Mts.). 
Reference. Spencer, 1981: 157. 
Mesonotum matt black 19 
19 (18). Squamal fringe pale, whitish 
A. ( Cephalomyza ) conf ondata Spencer, n. sp. 
Synopsis. Closely resembling A. (C. ) remus but 
smaller, with wing length in male 1.4 mm, discal 
cell smaller, last section of M 3+4 twice length 
of penultimate; frons darker, pale brownish to 
orange; mesonotum less shining, largely matt; male 
genitalia with aedeagus as in figures 526, 527. 
Host/Early Stages. Unknown. 
Distribution. California (San Bernardino Mts.). 
Reference. Part 2, p. 274. 
Squamal fringe deep black 
A. ( Cephalomyza ) f lavifrons (Meigen) 
Synopsis. Head (fig. 528) with frons not greatly 
projecting; 2 reclinate ors, 3 or 4 inclined ori; 
frons and gena yellow; 1st and 2d antennal seg- 
ments yellowish, 3d largely black, slightly paler 
on inside; mesonotum deep black, moderately shin- 
ing, 3+1 dc, presutural strong; pleura largely 
85 
