Host/Early Stages. Lathyrus spp. Larva forming 
large greenish blotch mine (fig. 823); puparium 
orange, posterior spiracles each with ellipse of 
about 10 bulbs and minute hornlike projection on 
anal side. 
Distribution. Arkansas (new record); Canada. 
References. Sehgal, 1971: 334; part 2, p. 289. 
Mesonotum with conspicuous yellow patches at 
hindcorners g \ 
81 (80). Male genitalia with aedeagus having mesophallus 
long, slender (figs. 824, 825) L. endiviae Hering 
Synopsis. Closely resembling L. lathyri but clear- 
ly distinguished by yellow patches at hindcorners 
of mesonotum; wing length less than 2 mm, discal 
cell small, last section of vein M 3+4 3 times 
length of penultimate; male genitalia with sperm 
pump (fig. 826) unusually large. 
Host/Early Stages. Lactuca , probably Cichorium 
intybus , possibly other genera of Ligulif lorae. 
Larva forming small, irregular blotch (fig. 827); 
posterior spiracles each with ellipse of 9 bulbs. 
Distribution. New records: Maryland, Washington. 
References. Hering, 1955: 205; part 2, p. 287. 
Male genitalia with aedeagus having mesophallus 
shorter, broader (figs. 828, 829) L. taraxaci Hering 
Synopsis. Not distinguishable externally from L. 
endiviae but in view of differences in male geni- 
talia certainly distinct. 
Host/Early Stages. Taraxacum spp. Larva forming 
upper surface blotch mine that may be more or less 
circular (fig. 830) or slightly more elongate (see 
Spencer, 1976a: fig. 491, Europe); puparium 
yellowish, posterior spiracles each with ellipse 
of 8 or 9 bulbs. 
Distribution. (?) Washington, Wisconsin (new re- 
cord); Canada, Europe. 
References. Spencer, 1969a: 188; 1976a: 274; part 
2, p. 294. 
82 (49). Outer crossvein lacking L. togata (Melander) 
Synopsis. Head largely yellow, 1 ors and 2 or 3 
ori; hindmargin of eye only narrowly grayish be- 
yond base of vte, both vt clearly on yellow 
ground; mesonotum ash gray, acr sparse, in 2 or 3 
rows; scutellum bright yellow centrally, narrowly 
black at sides; legs with femora either entirely 
yellow or with slight brownish striations; squama 
yellow, margin and fringe only slightly darker, 
ochreous; wing length 1.6-1.75 mm; male genitalia 
with aedeagus as in figures 831, 832. 
Host/Early Stages. Baccharis douglasii . Details 
of leaf mine not known. 
Distribution. Central California, Washington. 
References. Steyskal, 1980: 141; part 2, p. 295. 
Outer crossvein present 83 
83 (82). Squama 1 fringe pale, yellowish white 
L. lima (Melander) 
134 
