_ L. asclepiadis Spencer 
Synopsis, Closely resembling L. eupatorii , differ- 
ing in paler upper orbit and consistently yellow 
femora; wing length 1 . 6—2 mm . 
Host/Early Stages. Asclepias spp. Larva forming 
small, predominantly regular blotch mine (fig. 
794), with greenish diffused frass, pupating 
externally; puparium pale, yellowish, posterior 
spiracles each with ellipse of about 10 bulbs; 
larval mouth parts as in figure 795 . 
Distribution. Indiana, New Hampshire; new records: 
Minnesota, Minneapolis, Minnehaha Creek, empty 
leaf mines on Asclepias ovalifolia , 29. VI. 80 
(KAS); New York, Albany Co., airport, 2m., 1 f . , 
reared ex Asclepias incarnata , July 1969 (G. and 
K. Eickwort). 
Reference. Spencer, 1969a: 169. 
Note. The record for Washington given by Spencer, 
1969a, is erroneous and represents L. subasclepi- 
adis, n. sp. (see below). ” 
Male genitalia with aedeagus (figs. 796, 797) of 
uniform width at distal end 
L . subasclepiadis Spencer, n. sp. 
Synopsis. Not distinguishable externally from L. 
asclepiadis , with following essential characters: 
Frons, orbit, and 3d antennal segment yellow, 2 
ors, hindmargin of eye black, with both vt on black 
ground; mesonotum shining black, acr in 4 rows; 
femora entirely yellow, tibiae and tarsi brownish. 
Host/Early Stages. Asclepias speciosa . Larva 
forming greenish, irregular interparenchymal mine. 
partially linear (fig. 798). 
Distribution. Washington. 
Reference. Part 2, p. 293. 
67 (58). Vti on yellow ground, vte on black 68 
— Both vt on yellow 79 
68 (67). Minute species, wing length 1.4-1 . 6 mm 69 
Larger species, wing length 1.8-2.75 mm 70 
69 ( 68 ). 1 ors, 3 ori L • schlingeri Spencer 
Synopsis. Agreeing closely with L. sativae and L. 
virginica with following essential characters: 
Frons, orbit, and antenna yellow, 1 ors, 3 ori; 
hindmargin at eye black to base of vte; mesonotum 
shining black, with large yellow patches at hind- 
corners; mesopleuron largely yellow, with only 
small dark patch at lower front corner; legs with 
femora yellow, tibiae and tarsi yellowish brown; 
wing length 1.4-1 . 6 mm, discal cell small, last 
section of M 3+4 3 times length of penultimate; 
male genitalia with aedeagus as in figures 
799, 800. 
Host/Early Stages. Unknown. 
Distribution. Southern California. 
Reference. Spencer, 1981: 269. 
2 ors, 2 ori L. virginica Spencer, n. sp. 
Synopsis. Differing from L. schlingeri externally 
130 
