matt gray, acr in 4 rows; legs black, all knees 
bright yellow; squama yellow, margin variable, 
normally brownish to black, occasionally ochre- 
ous yellow; wing length 2. 1-2.5 mm, 2d costal 
section twice length of 4th; male genitalia 
with aedeagus (fig. 1194) having distiphallus 
with paired, largely fused, S-shaped tubules, 
weakly pigmented at end. 
Host/Early Stages. Clematis ligustici folia . 
Larva almost certainly feeding either in stem 
or seeds (9 specimens in type series caught on 
foliage) . 
Distribution. Southern California. 
Reference. Spencer, 1981: 382. 
- 3d antennal segment small, round 58 
58 (57). Squamal margin brown, fringe ochreous 
P. subtilis Spencer 
Synopsis. Frons yellowish orange or brown, 
orbit darkened; all antennal segments, face, 
and palpus black; mesonotum and scutellum matt, 
blackish gray, with only weak subshine; legs 
almost completely black, only foreknee indis- 
tinctly paler; squama gray, margin brown, 
fringe ochreous to black; wing length 2-2.3 mm 
(California), 2. 6-2. 8 mm (Alaska), 2d costal 
section 2.5 times length of 4th; male genitalia 
with aedeagus as in figures 1195, 1196. 
Host/Early Stages. Lathyrus ochroleucus , L. 
vestitus , Vicia americana . Larva forming 
whitish blotch, pupating externally; puparium 
reddish brown, posterior spiracles each with 
ellipse of about 20 minute bulbs. 
Distribution. California; Alaska, Canada. 
References. Spencer, 1969a: 276; 1981: 426. 
Squamal margin and fringe black 
P. ovimontis Griffiths 
Synopsis. Frons orange yellow, twice width of 
eye, not projecting above eye in profile; orbit 
paler, with 2 ors, 2 ori; gena yellow, face 
grayish black; 2d and 3d antennal segments 
black, 1st paler; mesonotum and scutellum matt 
black, with brownish undertone; legs black, 
only foreknee narrowly yellow; wing length 
2.3 mm, 2d costal section about twice length of 
4th; male genitalia with aedeagus as in figures 
1197, 1198, basal sclerites with distinctive 
spicules, distiphallus divided, pigmented at 
end . 
Host/Early Stages. Erigeron caespitosus (in 
Yukon Territory). Larva forming primary blotch 
mine on upper surface (Griffiths, 1976b: fig. 
46); puparium dark brown, posterior spiracles 
each with 13-14 bulbs. 
Distribution. California (Inyo Co.); Canada. 
References. Griffiths, 1976b: 255; Spencer, 
1981: 409. 
194 
