5 
6 
Host/Early Stages. Many genera of Poaceae; Agropyron 
repens , Dactylis glomerata , Echinochloa crusgalli , 
Ehrharta erecta , and Hordeum mur inum recorded in 
North America by Frick (1959: 382, 438); in Europe, 
also known on Bromus , Dactylis , Festuca , Hierochloe , 
Holcus , Lolium , Milium , and Poa . Larva forms long 
mine on lower surface of leaf, pupating in leaf; 
puparium black, with posterior spiracles conspicu- 
ously projecting dorsally (fig. 560). 
Distribution. California, District of Columbia, 
Idaho, Illinois, Indiana, Maryland, Massachusetts, 
Michigan, New York, Pennsylvania (Frick, 1959); new 
records: Georgia, North Carolina, Tennessee (CNC), 
and Maryland, Montgomery Co., Bethesda, leaf mines 
with puparia on Dactylis glomerata , 25. VI. 80 
(KAS, USNM); occurring throughout Canada 
(Spencer, 1969a); Europe. 
References. Frick, 1959: 382; Spencer, 1969a: 132; 
1981: 181. 
Orbit entirely yellow C. (P. ) malaisei Spencer 
Synopsis. Closely resembling C • muscina but orbit 
entirely yellow; femora black basally, merging into 
yellow on distal 3d or 4th; wing length in male 2 
mm; male genitalia with aedeagus (fig. 561) having 
distal tubules long, sinuous, not rotated (as in C. 
muscina ) . “ 
Host/Early Stages. Unconfirmed, almost certainly 
Poaceae . 
Distribution. California (El Dorado Co.), (?) Texas 
(see Note below). 
Reference. Spencer, 1981: 180. 
Note. Two females from Texas, Kerr Co., Kerrville, 
21. IV. 59 (J. F. McAlpine, CNC) agree with C. malai- 
sei. in the bright yellow orbit, but the femora are 
almost entirely yellow, only narrowly black basally. 
It is possible that these represent another species 
in this complex, but their status can only be estab- 
lished when a male that can be associated with 
them becomes available. 
(3). Legs largely black, only forefemora distally yellow 
6 
All femora distally yellow 7 
(5). Squama 1 fringe black C. (P. ) pygmaea (Meigen) 
Synopsis. Dark species; frons 1.5 times width of 
eye, orbit widening below lower ors; gena narrow; 3 d 
antennal segment small, round; 3+1 dc, mesonotum 
shining black; legs largely black, only forefemora 
distally yellowish; squama dark gray, margin and 
fringe brownish black; wing length about 2 mm, last 
section of vein M 3+4 long, 2-2.5 times length of 
penultimate, discal cell thus small; male genitalia 
with aedeagus (fig. 562) sinuous, having almost 
circular curvature distally. 
Host/Early Stages. Poaceae, favorite hosts (in 
Europe) are Brachypodium sylv aticum, Dactylis 
glomerata , Des champs ia cespitosa , also recorded 
94 
