Host/Early Stages. Bidens, Helianthus, Rudbeckia. 
Larva forming greenish blotch mine. 
Distribution. Illinois, Indiana, Maryland, Min- 
nesota, New York, Pennsylvania, Virginia, (?) Wis- 
consin. 
References. Frick, 1956: 298 (as C. allecta); part 
2, p. 299. 
16 
17 
Orbit partially dark, at least to upper ors 15 
15 (14). Discal cell large, last section of vein M 3+4 thus 
relatively short, less than twice length of pen- 
ultimate — 
Discal cell smaller, last section of M 3+4 at least 
twice length of penultimate 
16 (15). Last section of M 3+4 1.5 times length of penulti- 
mate mikaniae Spencer 
Synopsis. Orbit conspicuously black, normally to 
midway between upper and lower ori; face grayish 
above, yellow below; 3d antennal segment small, 
round; mesonotum moderately shining black; legs 
with foreknee slightly yellowish; wing length 1.9- 
2.2 mm, last section of M 3+4 1.5 times length of 
penultimate; squama yellowish gray, margin and 
fringe black; male genitalia with aedeagus as in 
figure 909. 
Host/Early Stages. Mikania batatifolia . Larva 
forming whitish elongate blotch (fig. 910); pos- 
terior spiracles of larva (puparium) on distinctly 
elongated extension, each with 3 bulbs, terminal 
one greatly enlarged. 
Distribution. Florida; Jamaica. 
Reference. Spencer and Stegmaier, 1973: 84. 
Last section of M 3+4 1.8 times length of penulti- 
mate-- £. majuscula (Frick) 
Synopsis. Medium-sized species, wing length 1.75- 
2.5 mm, discal cell large, last section of M 3+4 
thus short, less than twice length of penultimate; 
orbit conspicuously black, at least to lower ori, 
sometimes to base of antennae; legs entirely 
black; mesonotum shining black; male genitalia 
with aedeagus (figs. 911, 912) having rear ventral 
sclerites separate and basal sclerites fully fused. 
Host/Early Stages. Senecio triangularis (Cali- 
fornia); in Alaska Petasites and S. lugens . Larva 
forming pale green blotch, up to 4 larvae in 
single leaf; posterior spiracles each with 3 bulbs. 
Distribution. California, Florida, Idaho, Washing- 
ton; Canada. 
References. Frick, 1956: 295; Spencer and Steg- 
maier, 1973: 80; Spencer, 1981: 306. 
17 (15). Orbit darkened to lower ori C. cynoglossi (Frick) 
Synopsis. Small species, wing length from 1.75 mm 
in male to 2.25 mm in female, last section of 
M 3+4 from 2 to 3 times length of penultimate; or- 
bit conspicuously darkened, at least slightly to 
lower ori; mesonotum moderately shining black; 
legs almost completely black; squama with margin 
147 
