MAY 5= 1917 
ond @lale 
VOL. XXIV APRIL, 1917 No. 2 
Ss 
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SONIAN Dt aw 
DESCRIPTIONS OF A FEW NEW DIAPHORUS FROM THE 
WESTERN STATES (DIPTERA). 
By M. C. Van DUZEr, 
Buffalo, New York. 
The seven species here described came into my hands soon 
after my revision of this genus was published in the Bulletin of 
the Buffalo Society of Natural Sciences, Vol. xi, No. 2, 1915. 
I found the genus Diaphorus much better represented in Cali- 
fornia than was Chrysotus both as to species and individuals dur- 
ing my stay there from February to June, 1915. In the eastern 
states the Chrysotus are by far the more numerous. 
One of the species included here is from Virginia; it came to 
hand after the others were described. 
Diaphorus californicus sp. nov. 
-Male: Length, 3-4 mm. Front narrow, about as wide at the 
narrowest part as the width of the ocellar tubercle, wider below; 
face about as wide as long; face and front thickly covered with 
white pollen; antenne black, third joint small, rather flattened 
in outline at tip with the arista inserted at the upper corner; 
palpi and proboscis black. Thorax and abdomen green, dulled 
with rather thick gray pollen; venter black; hairs of the abdomen 
black; hypopygium concolorous with the abdomen, its appendages 
are rather large brown lamellie the outer part of which are nearly 
oval with a short slender stem and are fringed with long black 
hairs. Coxe and legs black with the trochanters, knees and base 
of fore tibie yellowish brown (in the Alpine specimen almost 
wholly black); fore coxze with black hairs and a row of black 
bristles the whole length of the front surface; the black hairs on 
the under side of the femora long, those on the hind pair rapidly 
increasing in length towards the apex, those at its base very short; 
