Fluke—Syrphidae of Wisconsin . 
225 
Male 6.5 to 7.5 mm. long. Pile chiefly dusky or black; 
pile of vertex and frontal triangle long black, of the face 
slightly brownish. Face and frontal triangle blue-black, 
shining; face with a distinct line of white pollen along 
each eye-margin. Pile of eyes brownish, lighter below. 
Antennae brownish black, reddish beneath the third joint, 
arista reddish. Occiput with white pollen and pile. 
Thorax shining bronze-black with brownish erect pile, 
lighter on the dorsum; tegulae black, brownish ciliate. 
Abdomen shining bronze-black on basal half to two thirds, 
blue-black on apical third; pile short, black, except on 
basal corners, where it is longer and brownish. Legs 
black with black or brownish pile, the following parts 
luteous: extreme tip of all the femora, basal two thirds of 
the front and middle tibiae, and basal joints of front and 
middle tarsi; hind tarsi slightly incrassate. Wings dusky, 
more hyaline toward the base. Hypopygium rather long 
and prominent. 
11. P. femoralis Loew. Milwaukee and Dane Counties. 
“Johnson (Psyche 14: 75) says femoralis and albipilosa are 
different forms of the same species. Four specimens collected 
at Milwaukee point in the same direction. One male and two 
females have wings hyaline, slightly infuscated on the outer 
half. In the other female the wings are conspicuously 
clouded and insect is altogether darker than the typical 
femoralis, having black antennae and darker legs. In one of 
the females the interrupted yellow fascia across the second 
abdominal segment is twice as broad as in the others. ’’— 
G-raenicher. 
12. P. festiva Meig. One specimen each from Dane and Pierce 
Counties. 
13. P. radicum Walsh and Riley. Pierce, Grant, Milwaukee, 
Dane, and Burnett Counties. June to September. Fig¬ 
ure 14. 
(P. pisticoides Will.) Recorded from N. Hamp., Alaska, Me., 
N. Y., Colo., N. Mex., Nebr., Ohio, Br. Col. Figure 15. 
Paragus Latreille 
1. Eyes uniformly pilose without a vertical glabrous stripe, face 
of both sexes with a black median stripe, seutellum without 
a yellow border ..... tibialis 
Eyes pilose with a distinct vertical glabrous stripe, face of male 
without a black stripe, seutellum usually with a yellow 
border ....... 2 
15—S. A. L. 
