setulae sparse, in single row; gena 
broad, extended at rear, 0.4 height of 
eye; 3d antennal segment slightly 
longer than broad, with long, upcurved 
pubescence. 
Mesonotum. 3+1 slender, dc, acr 
irregularly in 3-4 rows in front. 
Wing. Length from 1.3 mm in male to 
1.75 mm in female, 2d costal section 
2.5 times length of 4th. 
Color. Frons, orbit, gena, face, and 
palpus yellow; hindmargin of eye 
black; 3d antennal segment black, 1st 
and 2d paler, yellowish; mesonotum, 
scutellum, and side of thorax gray; 
legs blackish gray, femora with all 
knees yellow; abdomen largely dark but 
tergites somewhat yellowish laterally; 
squama and fringe yellow, margin dark. 
Male genitalia. Aedeagus as in 
figures 1146, 1147; sperm pump minute, 
blade round, scarcely pigmented. 
Host/early stages. Ceanothus sp. 
( "buckbrush") . Larva forming linear 
mine that appears as blotch virtually 
filling small leaves, pupating in 
leaf; puparium yellowish, posterior 
spiracles on widely separated projec- 
tions, each with ellipse of about 8 
bulbs . 
Holotype m. , Kansas, Riley Co., 
Manhattan, ex Ceanothus , 27.V.39; 
paratypes 1 m., 1 f. (without head), 
28. V. and 10. VI. 39, otherwise same 
data; (all C. W. Sabrosky). Holotype 
presented to USNM, paratypes in PSU. 
Remarks. This is the only leaf miner 
known on any genus of the Rhamnaceae, 
and the male genitalia confirm that it 
occupies an isolated position. 
Phytomyza chelonei Spencer (new to 
U.S.A. ) 
(Figs. 1167, 1168) 
Phytomyza chelonei Spencer, 1969a: 234. 
Holotype male from Quebec in CNC. 
This species has been known only from 
the unique holotype. Five specimens 
can now be recorded from Indiana, 
North Carolina, and Tennessee. 
The aedeagus of the United States 
specimens agrees exactly with that of 
the holotype (figs. 1167, 1168). 
Essential characters of the adult are 
projecting yellow frons; 2 equal ors; 
acr in 4 rows; femora black with 
yellow knees and yellow squama 1 
fringe. These are also identical in 
the two populations. The only 
detectable difference appears to be 
the color of the forecoxa, which is 
yellow in the holotype but predomi- 
nantly dark in the United States 
specimens. Some variation in the 
color of this part of the leg is not 
considered to be of great significance. 
Wing length of the female, which has 
not previously been known, is 3.25 mm. 
New records. 
Indiana, Tippecanoe Co., Lafayette, 1 
m. , 3.V.18 (coll, not recorded), in 
PSU. 
North Carolina, Macon Co., Highlands, 
1 m., 21. VIII. 57 (W. R. Richards); 1 
f., same data (J. G. Chillcott); Mt. 
Mitchell, 6,800 ft, 1 m. , 12. VIII. 57 
(J. G. Chillcott); in CNC. 
Tennessee, Sevier Co., Great Smoky 
Mts. N. P., Indiana Gap to 
Clingman's Dome, 5,200-6,600 ft, 1 
m. , 6. VIII. 57 (J. G. Chillcott), in 
CNC. 
Phytomyza clematisella Spencer, 
new species 
(Figs. 1319, 1320) 
Head. Frons twice width of eye, not 
projecting above eye; 1 reclinate ors, 
2 equal, inclined ori that are 
slightly weaker than ors, orbital 
setulae minute, sparse; gena 0.33 
height of eye; 3d antennal segment 
rounded, only slightly longer than 
broad. 
Mesonotum. 3+1 strong dc, acr 
numerous in front, in 4-5 rows. 
Wing. Length in male 1.75-1.9 mm, 2d 
312 
