Amauromyza ( Cephalomyza ) albido- 
halterata (Malloch) , new combination 
(Figs. 532, 533) 
Agromyza albidohalterata Malloch, 
1916: 52. Holotype male from 
Illinois in IINR. 
Phytobia ( Cephalomyza ) albidohalter- 
ata , Frick, 1953a: 69. 
This is a typical Cephalomyza and 
therefore correctly belongs in the 
genus Amauromyza , to which it is now 
transferred. 
The unique male holotype is from St. 
Joseph, Champaign County, 111. There 
is another male in the USNM from White 
Heath, 111., and the aedeagus of this 
specimen is shown in figures 532, 
533. The genitalia indicate close 
relationship with A. remus (figs. 524, 
525) and A. romulus (figs. 535, 536), 
both from California, but there are 
significant differences between these 
species . 
Amauromyza ( Cephalomyza ) auriceps 
(Melander), new combination 
(Figs. 518, 519) 
Agromyza auriceps Melander, 1913: 
262. Lectotype female from Idaho, 
designated by Frick, 1957b: 202, in 
USNM. 
Phytobia (Cephalomyza) auriceps , 
Frick, 1957b: 202. 
With the inclusion of the subgenus 
Cephalomyza in Amauromyza , this 
species is now formally transferred to 
Amauromyza . 
A. auriceps closely resembles A. 
scleritica , known only from 
California, but it is distinguishable 
by the larger discal cell and the 
different male genitalia (figs. 518, 
519 and figs. 516, 517). 
Melander included in the type series 
five males and six females from Idaho 
and one female from Colorado. Eight 
other specimens have now been seen 
from Colorado, Boulder County, 4 miles 
northwest of Boulder, 6,900 feet, two 
males, six females, 17. VI. 61 (B. H. 
Poole), in CNC. 
Amauromyza ( Cephalomyza ) confondata 
Spencer, new species 
(Figs. 526, 527) 
Head. Frons strongly projecting above 
eye (head shrunk, frons/eye ratio not 
measurable); 1 ors, 4 ori, orbital 
setulae minute, sparse, virtually 
lacking; gena deeply extended at rear, 
slightly over 0.5 height of small eye; 
3d antennal segment small, partial- 
ly enclosed by projecting frons, arista 
distinctly swollen basally; broad epi- 
stoma present. 
Mesonotum. 3 developed postsutural 
dc, 2 presuturals little shorter than 
3d, acr lacking. 
Wing. Length in male 1.4 mm, last 
section of M 3+4 twice length of 
penultimate. 
Color. Frons and gena pale brownish, 
antenna, face, and palpus black; 
mesonotum matt black; scutellum, 
pleura, and legs black, notopleuron 
faintly brownish; squama whitish gray, 
margin faintly brownish, fringe pale; 
halter white. 
Male genitalia. Aedeagus as in 
figures 526, 527, illustrated as A. 
(C. ) anomala (Spencer, 1981: figs. 
212, 213); sperm pump with large, 
almost triangular blade, slightly 
longer than aedeagus, base large. 
Host/early stages. Unknown. 
Holotype m. , California, San 
Bernardino Co., San Bernardino Mts., 
Kramer Hills, 25. IV. 57 (G. I. Stage), 
presented by UCB to CAS. 
Remarks. This species was originally 
tentatively associated with A. anomala 
Spencer (1981: 150) following hasty 
examination after completion of the 
description. It is now clear that it 
is distinct and is related to A. 
romulus and A. remus , which occur at 
274 
