Facial keel not shining above 55 
55 (54). Minute species, wing length in male 1.6 mm 56 
Larger species, wing length at least 1.9 mm 57 
56 (55). Frons 1.5 times width of eye 0. lassa Spencer 
Synopsis. Head (fig. 304) with gena narrow, 0.17 
height of eye, forming angle of 80°; fasciculus 
short, straight; facial keel narrow but conspic- 
uously raised below base of antennae; male geni- 
talia with aedeagus as in figures 305, 306. 
Host/Early Stages. Unknown. 
Distribution. California. 
Reference. Spencer, 1981: 88. 
— Frons little wider than eye 0. parva Spencer, n. sp. 
Synopsis. Agreeing closely with 0. lassa but fas- 
ciculus longer, more curving (fig. 307); male 
genitalia with aedeagus as in figures 308, 309. 
Host/Early Stages. Unknown. 
Distribution. New Mexico. 
Reference. Part 2, p. 256. 
57 (55). Mesonotum normally matt, almost brownish 
(). lantanae (Froggatt) 
Synopsis. Wing length 1.9-2. 2 mm; frons 1.5 times 
width of eye; gena narrow, about 0.20 height of 
eye, forming angle of about 80°; fasciculus in 
male long, slender, with distinctive curvature 
(fig. 310); male genitalia with aedeagus as in 
figures 311, 312. 
Host/Early Stages. Lantana camara and some other 
Lantana spp. Larva feeding in seed heads, either 
in pulp of immature berries or lower in peduncle, 
where pupation takes place. 
Distribution. Southern California, Florida, Texas; 
widespread in Brazil, Caribbean area, Costa Rica, 
Mexico, Panama; introduced widely in Old World 
tropics to control Lantana . 
References. Frick, 1957b: 201; 1959: 370; Spencer, 
1973a: 358-363; Spencer and Stegmaier, 1973: 60. 
— Mesonotum more distinctly shining 58 
58 (57). Facial keel low, scarcely raised 0. levata Spencer 
Synopsis. Wing length in male 2.4 mm; frons 1.5 
times width of eye; gena narrow, 0.20 height of 
eye, forming angle of 80°; fasciculus in male 
long, curving (fig. 313); male genitalia with 
aedeagus as in figures 314, 315. 
Host/Early Stages. Unknown. 
Distribution. California. 
Reference. Spencer, 1981: 84. 
Facial keel narrow but high 
0 . arizonensis Spencer, n. sp. 
Synopsis. Wing length in male 1.9 mm; frons 1.5 
times width of eye; gena narrow, 0.17 height of 
eye, forming angle of approx. 70°; fasciculus in 
male short, slender (fig. 316); male genitalia 
with aedeagus as in figures 317, 318. 
Host/Early Stages. Unknown. 
Distribution. Arizona. 
Reference. Part 2, p. 251. 
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