Host/Early Stages. Unknown. 
Distribution. Colorado. 
Reference. Part 2, p. 311. 
2d costal section long, 3 times length of 4th; 
orbit yellow below upper ors; acr in 4 rows 
1?. f lexuosa Spencer, n. sp. 
Synopsis. Frons clear yellow, 2 ors, upper 
strong but weaker than lower, 2 ori; 3d anten- 
nal segment black; legs with knees broadly yel- 
low, tibiae and tarsi paler, yellowish brown; 
squama and margin yellow; wing length in male 
2.5 mm; male genitalia with aedeagus as in fig- 
ures 1231, 1232. 
Host/Early Stages. Unconfirmed, probably in 
Ranunculaceae . 
Distribution. Washington. 
Reference. Part 2, p. 317. 
74 (72). Orbit black P . subtil is Spencer 
(Orbit normally merely darkened, see couplet 
58.) 
Orbit yellow 75 
75 (74). Frons distinctly darkened in front — 1?. lanati Spencer 
(Frons normally more uniformly brown, see coup- 
let 130.) 
- Frons yellow 76 
76 (75). Acr numerous, in 5-6 rows P. aquilegioides Sehgal 
Synopsis. Gena yellow, relatively narrow, 0.2- 
0.17 height of eye; palpus, 3d antennal segment 
black, 1st and 2d segments slightly paler; meso- 
notum blackish gray, with only slight subshine; 
legs black, all knees yellowish; squama yellow- 
ish, margin and fringe dark; wing length 2. 1-2.5 
mm, 2d costal section long, 3-4 times length of 
4th; male genitalia with aedeagus as in figures 
1233, 1234. 
Host/Early Stages. Aquilegia spp., Thalictrum 
polycarpum , and other Thalictrum spp. Larva 
forming circular blotch which can appear large 
and irregular, as mines of several larvae merge; 
puparium dark brown, all segments with bands of 
minute black spicules, posterior spiracles each 
with ellipse of about 15 minute bulbs. 
Distribution. California; Alaska, Canada. 
Reference. Spencer, 1981: 375. 
Note. This species was misidentif ied in Cali- 
fornia by Frick (1959: 424) as £. aquilegiana 
Frost. Although closely resembling P. angel - 
icae , P. pastinacae , and P. spondylii , it is 
not directly related to these feeders on Api- 
aceae . 
Acr sparse, in 2-4 rows 77 
77 (76). Acr in 4 rows 78 
Acr in 2-3 rows 81 
78 (77). Male genitalia with aedeagus having distiphallus 
fully or at least partially pigmented (figs. 
1235, 1238) 79 
200 
