Distribution. Alabama, California, Florida, 
Ohio (?), South Carolina, Texas; Argentina, 
Barbados, Brazil, Central America, Chile (pre- 
viously unrecorded), Hawaii, Jamaica, Peru, Vene- 
zuela. 
References. Spencer, 1973a: 219-225 (economic 
importance); 1981: 264; part 2, p. 292. 
64 (62). Discal cell small, last section of vein M 3+4 3 
times length of penultimate; femora conspicuously 
pale, lemon yellow L . venegasiae Spencer 
Synopsis. Frons broad, twice width of eye, yellow, 
together with orbit, face, and antenna; hindmargin 
of eye black to base of vti; mesonotum deep black, 
strongly shining, yellow patches at hindcorners 
small; mesopleuron (fig. 785) black on lower half; 
legs with femora entirely bright yellow, tibiae 
and tarsi brownish yellow on p 1 , darker, brownish 
black on p 2 and p 3; wing length from 1.6 mm in 
male to 2.1 mm in female, last section of M 3+4 
3-4 times penultimate; male genitalia with aedea- 
gus as in figures 786, 787; surstylus with 2 stout 
spines . 
Host/Early Stages. Bidens pilosa , Venegasia car - 
pesioides . Larva forming long, irregular linear 
mine, with several mines in same leaf. 
Distribution. Southern California. 
Reference. Spencer, 1981: 284. 
Discal cell larger, last section of M 3+4 only 2- 
2.5 times length of penultimate; femora yellow, 
sometimes with darker striations 65 
65 (64). Upper orbit sometimes slightly darkened 
7 k* eiipatorii (Kaltenbach) 
Synopsis. Frons and antenna yellow, faintly 
darkened, hindmargin of eye black to base of vti; 
mesonotum deep black, matt viewed from front, 
distinctly shining seen from rear, yellow patches 
at hindcorners large; mesopleuron black on lower 
half, yellow above; legs with femora yellow, nor- 
mally with some brownish-black striations; wing 
length 1.6-2 mm, last section of M 3+4 2-2.5 times 
length of penultimate; male genitalia with aedea- 
gus as in figures 788, 789; sperm pump with short, 
narrow stalk and considerably widening blade; sur- 
stylus with single spine. 
Host/Early Stages. Aster , Eupatorium , Solidago (in 
Europe also Galeopsis ) . Larva forming long linear 
mine, at beginning sometimes a small spiral (figs. 
790, 791) (in Europe this is more pronounced); pu- 
parium yellow. 
Distribution. California, Washington; new records: 
Georgia, Mississippi, North Carolina, South 
Carolina, Tennessee; Canada, Europe. 
References. Frick, 1959: 404; Spencer, 1969a: 174* 
1981: 230; part 2, p. 288. 
Orbit entirely yellow 55 
66 (65). Male genitalia with aedeagus (figs. 792, 793) dis- 
tinctly widening at distal end 
129 
