HELEOMYZID FLIES NORTH OF MEXICO—GILL 553 
Maue.—Head similar to A. coloradense Garrett; cheek-eye ratio 
from 0.45 to 0.50. 
Mesonotum dark brown in ground color with ash-gray pollinosity; 
pleura more yellowish; dorsocentrals arising from brown spots with 
longitudinal shading between the dorsocentrals, so that a pair of 
vittae is suggested; setae between dorsocentrals in about 5 irregular 
rows; a thin dark median vitta in anterior third of mesonotum; 
scutellum concolorous with remainder of mesonotum; pleura as in 
A. coloradense Garrett, with mesopleuron slightly darkened above. 
Legs yellowish or slightly darkened with brownish. 
Wings with smoky brown clouding, mostly in cell R,, but also in 
the interior of other cells; crossveins clouded. 
Abdomen dark brown to black in ground color with grayish 
pollinosity. 
FremaLe.—The allotype female is similar to the male, except that the 
vittae through the dorsocentrals are even more definite and become 
wider posteriorly and extend on to the scutellum; the third antennal 
segment is brownish yellow; darker than in the male. 
Lrenatu.—4.0-5.0 mm. 
Typres.—The holotype (male) and allotype were collected at Mount 
Rainier, Washington, ‘‘7-6-35,” by R. H. Beamer; they are in the 
University of Kansas collection. Two paratype males were sent to 
me on loan from Oregon State College; one has been returned and the 
other deposited in the collection of the State College of Washington. 
These specimens were collected at Lake of the Woods, Ore., 17 July 
1932, by J. E. Davis. 
Disrrreution.—In addition to the types, I have seen a male and 
female in the Steyskal collection. Collection data: Camp Abbot, 
Deschutes County, Oreg., 24 May 1944. 
Anorostoma jamesi, new species 
FIGURE 52 
The long fingerlike projection of the epiphallic process readily 
distinguishes the male of this species. It is the only species of Ano- 
rostoma which has two equal (or nearly equal) mesopleural bristles. 
Mate AND FEMALE.—Head similar to A. coloradense Garrett; third 
antennal segment yellow to yellowish brown; pollinose triangular 
area enclosing the ocelli has its apex close to the frontal suture, al- 
though the raised ocellar triangle is as usual; cheek-eye ratio from 
0.68 to 0.81. 
Thorax yellow to yellowish brown in ground color with a grayish 
pollinosity; a narrow brownish nonpollinose vitta extends longi- 
tudinally along the median line of mesonotum; wider vittae extend 
